HK1262321B - Orthokeratology lens designating system - Google Patents

Description

Decision system for orthokeratology lenses

Technical Field

The present invention relates to a method for determining a corneal refractive therapy contact lens, a determination system, a method for determining a provision of a corneal refractive therapy contact lens used in orthokeratology, wherein the orthokeratology treatment comprises treating ophthalmic refractive errors such as myopia and hyperopia by deforming the corneal shape through wearing a contact lens with a special curve design.

Background Art

Among the above-mentioned orthokeratology treatments, conventional treatments for correcting myopia and astigmatism, such as that disclosed in Patent Document 1, are called orthokeratology.

In addition, Patent Document 2 discloses a corneal reshaping lens as a contact lens for correcting myopia and/or astigmatism according to the invention of the present inventor (hereinafter referred to as a corneal reshaping lens including those for correcting myopia and/or astigmatism and those for correcting hyperopia).

The above-mentioned orthokeratology lens is set to: in the case of myopia correction, the curvature is changed to a plane in stages; in the case of hyperopia correction, the curvature is made close to the curvature that can obtain ideal naked eye vision in stages; in the final stage, the cornea is made to have a curvature that can obtain ideal naked eye vision.

In addition, when wearing a corneal refractive therapy lens on the cornea, multiple candidate contact lenses are worn in sequence in the past. These multiple candidate contact lenses are selected based on data obtained by measuring the refractive power of the patient's cornea (hereinafter referred to as refractive power or D) using a keratormeter, and the corneal refractive therapy lens with the most suitable correction D for correcting corneal D among the multiple candidate contact lenses is used.

Sometimes, multiple contact lenses with slightly different correction Ds are prepared, all of which are worn on the patient's cornea for testing, one of which is used for correction, and the others are discarded. This leads to problems such as waste of contact lenses and an increased burden on the patient.

The number of doctors who can perform vision correction treatment using orthokeratology lenses, as described above, is limited, and their locations are limited. Therefore, for patients in remote locations, receiving treatment can be a significant burden, both in terms of time and money. Furthermore, even if a doctor is available in a remote location, obtaining the most appropriate orthokeratology lens for the patient presents technical and time constraints.

Patent Document 1: U.S. Patent No. 5,695,509

Patent Document 2: Japanese Patent No. 3881221

Summary of the Invention

Problems to be solved by the invention

The present invention is made in view of the above-mentioned previous problems, and its purpose is to provide a method for determining a corneal reshaping lens, a determination system, a method for determining and providing a corneal reshaping lens, and a determination providing system for determining and providing a corneal reshaping lens, which can quickly determine the most suitable contact lens for corneal reshaping, i.e., a corneal reshaping lens, without burdening the patient by repeatedly wearing the contact lens on the patient's cornea.

Solutions for solving problems

The inventors have developed a method for easily identifying the orthokeratology lens most suitable for a patient's cornea. Furthermore, this method accumulates data on orthokeratology lenses actually used for corneal correction on over 10,000 patients to create a database. Based on this database, doctors can easily determine the most suitable orthokeratology lens, using the patient's corneal data. Furthermore, the determined orthokeratology lens data can be sent to the doctor's terminal, which then transmits the data to a lens manufacturing device to manufacture the orthokeratology lens and provide it to the doctor.

That is, the above-mentioned problems are solved by the following embodiments.

(1) A method for determining orthokeratology lenses, comprising the following steps:

A database creation process, in which a trial process and a selection process are repeated, wherein in the trial process, the following processes are sequentially performed on a plurality of orthokeratology lenses: a wearing process, in which the orthokeratology lens is worn on the cornea at a position centered on the pupil of the patient with the head upright; an image information acquisition process, in which an image of the orthokeratology lens moving on the cornea is continuously or intermittently acquired; and a movement data detection process, in which the movement speed and movement direction of the orthokeratology lens are detected based on the acquired image information. In the selection process, it is determined whether the acquired movement speed and movement direction data are within a fixed range, and if they are within the fixed range, the orthokeratology lens is selected for use by the patient. In the database creation process, the selected orthokeratology lens is selected. The orthokeratology lens serves as a registration lens, and stores registration lens correction D data, registration patient data, and registration stage data of the registration lens, and creates a lens database, wherein the registration lens correction D data is composed of lens correction D data at a site in contact with the cornea, the registration patient data includes at least the registration cornea D data among registration cornea diameter data, registration cornea diameter data composed of corneal diameter data of the patient, and registration pupil diameter data composed of pupil diameter data of the patient, the registration cornea D data is composed of D data of the cornea at the site in contact before wearing the registration lens, and the registration stage data is composed of data indicating whether the registration lens is worn on the cornea at the first stage or at a later stage among a plurality of correction stages;

a patient data acquisition process in which patient data is acquired, the patient data including at least the patient cornea D data consisting of D data of the patient's cornea to be corrected, the patient cornea diameter data consisting of data on the cornea diameter, and the patient pupil diameter data consisting of data on the pupil diameter;

a patient stage data acquisition process, in which patient stage data is acquired for the patient's cornea to be corrected, indicating which stage of correction the orthokeratology lens is currently being worn; and

A lens determination process, in which a registration lens having registration cornea D data closest to the acquired patient cornea D data and registration stage data identical to the patient stage data is detected from the lens database, and the detected registration lens is determined as the orthokeratology lens to be used for the patient.

(2) A system for determining orthokeratology lenses, characterized in that it comprises a selection device, a database server, a lens determination server connected to the database server, and a terminal device capable of being connected to the lens determination server, wherein the selection device is configured to include: a lens movement data acquisition device and a determination device, wherein the lens movement data acquisition device comprises: a lens camera, which captures the orthokeratology lens worn on the cornea at a position centered on the pupil of the patient with the head upright, and continuously or intermittently acquires an image of the state of movement on the cornea; and a lens movement data detection device, which detects the lens movement data of the orthokeratology lens composed of at least data of movement speed and movement direction from the image information of the orthokeratology lens moving on the cornea obtained by the lens camera, the determination device determines whether the acquired lens movement data is within a fixed range, and determines the orthokeratology lens within the fixed range as the orthokeratology lens suitable for use by the patient, and the selection device uses the orthokeratology lens suitable for use by the patient as a registration lens, and registers the registration lens correction D of the registration lens. The data, registered patient data, and registered stage data are output to the database server, wherein the registered lens correction D data is composed of lens correction D data at a portion contacting the patient's cornea, the registered patient data includes at least the registered cornea D data among the registered cornea D data, the registered cornea diameter data composed of the patient's corneal diameter data, and the registered pupil diameter data, the registered cornea D data being composed of D data of the cornea to be corrected at the contact portion, and the registration stage data being composed of data indicating whether the registered lens is worn on the cornea at the first stage or at a later stage among a plurality of correction stages.

The database server is configured to store the registered patient data and the registered stage data regarding the registered mirror and create a database.

The terminal device includes a patient data acquisition device and a patient stage data acquisition device, wherein the patient data acquisition device acquires patient data, the patient data including at least the patient cornea D data composed of the D data of the patient's cornea to be corrected, the patient cornea diameter data composed of the data of the cornea diameter, and the patient pupil diameter data composed of the data of the pupil diameter, and the patient stage data acquisition device acquires patient stage data of whether the next orthokeratology lens is worn on the cornea in the first stage of multiple correction stages or in which stage after the second stage for the patient's cornea to be corrected, and the terminal device is capable of sending the patient data and the patient stage data to the lens decision server,

The lens determination server is configured to detect from the database a registration lens having registration cornea D data closest to the acquired patient cornea D data and registration stage data identical to the patient stage data, and determine the detected registration lens as the orthokeratology lens for use by the patient.

(3) A method for determining and providing orthokeratology lenses, characterized by comprising the following steps:

A database creation process, in which a trial process and a selection process are repeated, wherein in the trial process, the following processes are sequentially performed on a plurality of orthokeratology lenses: a wearing process, in which the orthokeratology lens is worn on the cornea at a position centered on the pupil of the patient with the head upright; an image information acquisition process, in which an image of the orthokeratology lens moving on the cornea is continuously or intermittently acquired; and a movement data detection process, in which the movement speed and movement direction of the orthokeratology lens are detected based on the acquired image information. In the selection process, it is determined whether the acquired movement speed and movement direction data are within a fixed range, and if they are within the fixed range, the orthokeratology lens is selected for use by the patient. In the database creation process, the selected orthokeratology lens is selected. The orthokeratology lens serves as a registration lens, and stores registration lens correction D data, registration patient data, and registration stage data of the registration lens, and creates a lens database, wherein the registration lens correction D data is composed of lens correction D data at a site in contact with the cornea, the registration patient data includes at least the registration cornea D data among registration cornea diameter data, registration cornea diameter data composed of corneal diameter data of the patient, and registration pupil diameter data composed of pupil diameter data of the patient, the registration cornea D data is composed of D data of the cornea at the site in contact before wearing the registration lens, and the registration stage data is composed of data indicating whether the registration lens is worn on the cornea at the first stage or at a later stage among a plurality of correction stages;

a patient data acquisition process in which patient data is acquired, the patient data including at least the patient cornea D data consisting of D data of the patient's cornea to be corrected, the patient cornea diameter data consisting of data on the cornea diameter, and the patient pupil diameter data consisting of data on the pupil diameter;

a patient stage data acquisition process, in which patient stage data is acquired for the patient's cornea to be corrected, indicating which stage of the multiple correction stages the orthokeratology lens is currently being worn;

a lens determination process, in which a registration lens having registration cornea D data closest to the acquired patient cornea D data and registration phase data identical to the patient phase data is detected from the lens database, and the detected registration lens is determined as the orthokeratology lens to be used for the patient;

a registration lens correction D data sending process, in which the determined registration lens correction D data of the orthokeratology lens is sent to a lens manufacturing device; and

A lens manufacturing process, in which the registered lens correction D data sent is received, and the corneal reshaping lens for use by the patient is manufactured based on the received registered lens correction D data.

(4) A system for determining and providing orthokeratology lenses, characterized in that:

The device comprises a selection device, a database server, a mirror determination server connected to the database server, a terminal device connectable to the mirror determination server, and a mirror manufacturing device.

Wherein, the selection device is configured to include: a mirror movement data acquisition device and a determination device, wherein the mirror movement data acquisition device includes: a mirror camera, which captures the orthokeratology lens worn on the cornea at a position centered on the pupil of the patient with the head upright, and continuously or intermittently acquires an image of the state of movement on the cornea; and a mirror movement data detection device, which detects the mirror movement data of the orthokeratology lens composed of at least data of movement speed and movement direction from the image information of the orthokeratology lens moving on the cornea obtained by the mirror camera, the determination device determines whether the acquired mirror movement data is within a fixed range, and determines the orthokeratology lens within the fixed range as a orthokeratology lens suitable for use by the patient, the selection device uses the orthokeratology lens suitable for use by the patient as a registration lens, and outputs the registration lens correction D data, registration patient data and registration stage data about the registration lens to the database server, wherein the registration lens correction D data is the same as the registered patient data. The D data is composed of data on D correction of the lens at a site in contact with the patient's cornea, the registered patient data including at least the registered cornea D data among the registered cornea diameter data, the registered cornea diameter data composed of the patient's corneal diameter data, and the registered pupil diameter data, the registered cornea D data being composed of D data of the cornea to be corrected at the site in contact, and the registered stage data being composed of data indicating whether the registered lens is worn on the cornea at the first stage or at a later stage among a plurality of correction stages.

The database server is configured to store the registered patient data and the registered stage data regarding the registered mirror and create a database.

The terminal device includes a patient data acquisition device and a patient stage data acquisition device, wherein the patient data acquisition device acquires patient data, the patient data including at least the patient cornea D data composed of the D data of the patient's cornea to be corrected, the patient cornea diameter data composed of the data of the cornea diameter, and the patient pupil diameter data composed of the data of the pupil diameter, and the patient stage data acquisition device acquires patient stage data of whether the next orthokeratology lens is worn on the cornea in the first stage of multiple correction stages or in which stage after the second stage for the patient's cornea to be corrected, and the terminal device is capable of sending the patient data and the patient stage data to the lens decision server,

The lens determination server is configured to detect from the database a registration lens having registration cornea D data closest to the acquired patient cornea D data and registration stage data identical to the patient stage data, and determine the detected registration lens as the orthokeratology lens to be used for the patient.

The lens manufacturing device is configured to manufacture a corneal reshaping lens for a patient identical to the registration lens based on the determined registration lens correction D data of the corneal reshaping lens.

Effects of the Invention

According to the present invention, based on patient data including patient corneal D data of the patient's cornea, and patient stage data of orthokeratology lenses of which stage among multiple stages of corneal correction for the same patient, data of registered lenses with the same data are detected from a lens database to determine the most suitable orthokeratology lens, and the determined orthokeratology lens is manufactured and quickly provided to a doctor in a distant place, thereby being able to significantly suppress the burden on patients and the waste of lenses.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a block diagram showing the structure of a system for determining and providing orthokeratology lenses according to an embodiment of the present invention.

FIG2 is a block diagram showing the structure of the database server in this embodiment.

FIG3 is a top view schematically showing the movement state of the orthokeratology lens worn on the patient's cornea.

FIG4A is an enlarged cross-sectional view schematically showing the relationship between the patient's cornea D in the patient data and the lens correction D in the orthokeratology lens in the case of myopia correction.

FIG4B is an enlarged cross-sectional view schematically showing the relationship between the patient's cornea D in the patient data and the lens correction D in the orthokeratology lens in the case of hyperopia correction.

FIG5 is a block diagram showing the structure of the mirror determination server in this embodiment.

FIG6 is a block diagram showing the configuration of a terminal device in this embodiment.

FIG. 7 is a flowchart showing a process of creating a database based on data obtained by a selected device in this embodiment.

Figure 8 is a flowchart showing the process of determining the most suitable orthokeratology lens based on the data in the database and the data from the terminal device in the lens determination server of the orthokeratology lens in this embodiment and providing the most suitable orthokeratology lens.

FIG9A is a graph showing the difference between corneal D data and lens correction D data when correcting lens correction D data is obtained.

FIG. 9B is the same graph as FIG. 9A but under different conditions.

FIG10 is a flowchart showing the process of determining orthokeratology lenses when the deviation between the patient data and the registered patient data is large.

FIG11 is a flowchart showing a subroutine of the process shown in FIG10.

DETAILED DESCRIPTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[Example]

As shown in Figure 1, the corneal reshaping lens decision providing system (hereinafter referred to as the decision providing system) 10 for corneal reshaping involved in an embodiment of the present invention is composed of a selection device 20, a database server 30, a lens decision server 50 as a main server, a lens manufacturing device 50C connected to the lens decision server 50, a terminal device 70 that can be connected to the lens decision server 50, and a terminal-side lens manufacturing device 74.

First, the relationship between the above-mentioned components will be briefly described.

In the decision providing system 10 involved in the embodiment, in the selection device 20, the lens movement data acquisition device 22 obtains the data of the movement direction and movement speed of the orthokeratology lens worn on the patient's cornea just after being worn, and the judgment device 28 determines whether the orthokeratology lens is the most suitable for the patient's cornea.

The database server 30 repeatedly performs a process of storing the data of orthokeratology lenses (registered lenses) determined to be usable (positive) and the corneal data of the patient, and creates a database 30B (see FIG. 2 ).

As shown in FIG1 , the terminal device 70 and the terminal-side mirror manufacturing device 74 are located at a location remote from the mirror determination server 50, such as at the location of a doctor 72 located in a remote location abroad or domestically. The terminal device 70 is configured to transmit patient data, including corneal D data of the patient's cornea, obtained through measurement by the doctor 72 to the mirror determination server 50.

The lens determination server 50 is configured to detect a registered lens having the same data as the received patient data from the database 30B of the database server 30 and determine the detected registered lens as the most suitable orthokeratology lens.

When the lens determination server 50 determines an orthokeratology lens, as shown in FIG1 , the lens data receiving and transmitting device 73 of the terminal device 70 transmits a manufacturing instruction signal along with the lens data of the determined orthokeratology lens to the terminal-side lens manufacturing device 74. The terminal-side lens manufacturing device 74 then manufactures the orthokeratology lens with the lens data. The doctor 72 obtains the manufactured orthokeratology lens and administers it to the patient.

In addition, when the orthokeratology lens is not manufactured by the terminal side mirror manufacturing device 74, the orthokeratology lens is manufactured by the mirror manufacturing device 50C, and the manufactured orthokeratology lens is sent to the doctor 72 via the mirror sending mechanism 50D. The doctor 72 manages and operates the terminal device 70 that sends the patient data, and uses the orthokeratology lens to correct the patient's cornea.

Table 1 shows the types of data output from the mirror movement data acquisition device 22 , the types of data output from the selection device 20 and stored in the database server 30 , and the types of data output from the terminal device 70 and input to the mirror determination server 50 .

[Table 1]

Next, the details of each device in the decision provision system 10 will be described in sequence.

As shown in FIG1 , the selection device 20 includes a patient data acquisition device 20B, a mirror movement data acquisition device 22, and a determination device 28. The acquisition device 20B includes a keratometer (not shown), and the mirror movement data acquisition device 22 includes a mirror camera 24 and a mirror movement data detection device 26. Reference numeral 20A in FIG1 denotes an IF unit, 21A denotes a keyboard, 21B denotes a display, and 21C denotes a printer.

The mirror camera 24 is provided to capture images of the orthokeratology lens worn on the cornea at a position centered on the pupil of the patient with the head upright, and continuously or intermittently acquires images of the lens moving on the cornea.

The mirror movement data detection device 26 is configured to detect mirror movement data including at least data on the movement speed and movement direction of the orthokeratology lens based on an image of the orthokeratology lens moving on the cornea obtained by the mirror camera 24 .

It is assumed that the determination device 28 determines whether the mirror movement data obtained by the mirror movement data acquisition device 22 including the mirror movement data detection device 26 is within a fixed range, and the corneal refractive therapy lens within the fixed range is determined to be suitable for use by the patient.

The aforementioned "within a fixed range" refers to conditions such as those shown in Figure 3 where the movement speed exceeds 0 and is less than 10 mm/s, and the angle θ of the movement direction V relative to the perpendicular line Pe below the pupil Pu is within 6 degrees to the right or left. The symbol _OL0 in Figure 3 represents the orthokeratology lens positioned at the pupil Pu, and _OL1 represents the state after movement from the pupil Pu in the direction V.

While the patient is asleep or awake, blinking can return the orthokeratology lens, which has been lowered from the pupil, to the pupil. However, if these conditions are not fully met—that is, if the lens is lowered too quickly or moved diagonally, even blinking will not return it to the pupil. A movement speed of zero causes the lens to cling tightly to the cornea, reducing the amount of oxygen supplied to the cornea and making it inappropriate. The maximum movement speed of 10 mm/s and the angle of 6 degrees were determined by the inventors based on data from treatments of over 10,000 patients.

For example, stage data is input from keyboard 21A to the determination device 28, and the stage data indicates whether the orthokeratology lens used for the patient is the first lens worn on the cornea in the first stage of multiple correction stages or the lens worn in a stage after the second stage.

In addition, the selection device 20 is configured to output data related to the orthokeratology lens (registration lens) determined to be suitable for use by the patient to the database server 30, the data including lens correction D data at the site of contact with the patient's cornea, lens movement data, stage data, hyperopia or myopia data indicating whether it is for myopia correction or hyperopia correction, and patient data, the patient data including corneal D data, corneal diameter data regarding corneal diameter, and pupil diameter data regarding pupil diameter, the corneal D data being composed of corneal D data of the cornea to be corrected at the site of contact.

The database server 30 creates a database 30B by accumulating the input data related to the above-mentioned orthokeratology lenses, for example, the registered lens movement data, the registered lens correction D data, the registered stage data, the registered lens movement data, the registered hyperopia and myopia data, and the registered patient data including the registered corneal D data, the registered corneal diameter data, and the registered pupil diameter data, as shown in Table 2.

[Table 2]

Here, since the smaller the refractive power (D), the larger the curvature radii R and r of the lens and cornea, respectively, the relationship between the lens refractive power _DR and the corneal refractive power _DR is, in the case of myopia correction, _DR > _DR , i.e., r < R, as shown in FIG4A . In the case of hyperopia correction, it is, in the case of hyperopia correction, _DR < _DR , i.e., r > R, as shown in FIG4B . The difference between the two, _DR - _DR or _DR - _DR, varies depending on which stage of multi-stage correction is being performed, with the largest difference being in the first stage.

More specifically, the database server 30 includes an IF unit 30A, a control unit 40, and a database 30B as shown in Fig. 2. Reference numeral 40A in Fig. 2 denotes a keyboard, 40B denotes a display, and 40C denotes a printer.

The control unit 40 is configured to include a registered lens correction D data receiving function 41 , a registered lens movement data receiving function 42 , a registered stage data receiving function 43 , a registered patient data receiving function 44 , and a registered cornea/lens D difference data calculating unit 45 .

The database 30B is further configured to include a registered lens correction D data storage unit 31 , a registered lens movement data storage unit 32 , a registered stage data storage unit 33 , a registered patient data storage unit 34 , and a registered cornea/lens D difference data storage unit 35 .

In this specification, for example, the registration mirror correction D data receiving function 41 and the IF unit 30A together constitute a registration mirror correction D data receiving unit. In other words, the function and the IF unit together constitute a unit.

The registered lens correction D data receiving function 41 in the database server 30 is configured to receive the registered lens correction D data transmitted from the selected device 20 via the IF unit 30A. The received registered lens correction D data is stored in the registered lens correction D data storage unit 31 in the database 30B.

Similarly, the registration lens movement data receiving function 42 receives the registration lens movement data transmitted from the selected device 20 and stores it in the registration lens movement data storage unit 32. Furthermore, the registration phase data receiving function 43 receives the registration phase data transmitted from the selected device 20 and stores the received registration phase data in the registration phase data storage unit 33. The registration patient data receiving function 44 receives the registered patient data and stores the received registered patient data in the registered patient data storage unit 34. The registration cornea/lens D difference data calculation unit 45 is configured to calculate the difference between the registered cornea D data and the registered lens correction D data in the registered patient data, and stores the calculated value as the cornea/lens D difference data in the registered cornea/lens D difference data storage unit 35.

Next, the details of the mirror determination server 50 shown in FIG. 5 will be described.

The mirror determination server 50 is configured to include an IF unit 50A, a control unit 60, and a storage device 50B. In FIG5 , reference numeral 60A denotes a keyboard, reference numeral 60B denotes a display, and reference numeral 60C denotes a printer.

The control unit 60 is configured so that a signal from the terminal device 70 is received by a corresponding function in the control unit 60 via the Internet 14 and the IF unit 50A.

Furthermore, a signal is manually input from the keyboard 60A to the control unit 60 via the IF unit 50A.

The control unit 60 is constructed to have a terminal setting information receiving function 61, a patient data receiving function 62, a patient stage data receiving function 63, a mirror camera retention information receiving function 63A, a database retrieval unit 64, a correction mirror correction D data calculation unit 65, a correction data mirror determination unit 66, a test mirror data production unit 66A, a mirror manufacturing instruction function 67, a determination mirror data request receiving and sending function 67A, a mirror completion information receiving function 68, a mirror return information receiving function 69 and a determination test mirror data receiving function 69A.

The storage device 50B is configured to include a terminal information storage unit 51, a patient data storage unit 52, a patient stage data storage unit 53, a decision mirror data request storage unit 53A, a mirror camera retention information storage unit 53B, a correction mirror correction D data storage unit 54, a correction data mirror storage unit 55, a test mirror data storage unit 55A, a decision mirror storage unit 56, a mirror manufacturing instruction information storage unit 57, a completion mirror information storage unit 58, a mirror return information storage unit 59 and a decision test mirror data storage unit 59A.

6, terminal device 70 includes patient data acquisition device 71, control device 80 including patient data transmission function 84, and storage device 90. Reference numeral 70A in FIG6 denotes an IF unit, 80A a keyboard, 80B a display, and 80C a printer.

The control device 80 is constructed to have a terminal registration information sending function 81, a patient data receiving function 82, a patient stage data receiving function 83, the above-mentioned patient data sending function 84, a patient stage data sending function 85, a mirror collection information receiving function 86, a mirror return information sending function 87, a test mirror information sending function 88, and a mirror data request sending function 89A, a mirror data receiving function 89B and a mirror data sending function 89C that together with the IF unit 70A constitute the mirror data receiving and sending device 73.

The storage device 90 is configured to include a terminal registration information storage unit 91, a patient data storage unit 92, a patient stage data storage unit 93, a data sending storage unit 94, a mirror collection information storage unit 95, a mirror return information storage unit 96, a test mirror determination information storage unit 97, and a mirror data request information storage unit 98.

The terminal device 70 is configured to be used by a contracted doctor 72 with respect to the mirror determination server 50, which serves as the headquarters server. The terminal device 70 transmits information indicating that the terminal device 70 is under the management of the doctor 72, along with a password and an ID, to the mirror determination server 50 via a terminal registration information transmission function 81. Furthermore, this terminal registration information is registered in a terminal registration information storage unit 91 in a storage device 90. This terminal registration information includes information indicating whether the terminal device 70 includes the same mirror camera as the mirror camera 24 in the selection device 20.

The patient data receiving function 82 is configured to receive patient data (including patient corneal D data, corneal diameter, and pupil diameter) from the patient data acquisition device 71 via the IF unit 70A. The received patient data is stored in the patient data storage unit 92. Furthermore, the patient's hyperopia and myopia data within the patient data are input from the keyboard 80A.

The patient phase data is input from the keyboard 80A and received by the patient phase data receiving function 83 via the IF unit 70A. The received patient phase data is stored in the patient phase data storage unit 93.

It is assumed that the patient data transmission function 84 transmits the patient data stored in the patient data storage unit 92 to the mirror determination server 50 via the IF unit 70A and the Internet 14, and the patient phase data transmission function 85 transmits the patient phase data stored in the patient phase data storage unit 93 to the mirror determination server 50 via the IF unit 70A and the Internet 14. Furthermore, the fact that these data have been transmitted is stored in the data transmission storage unit 94.

The lens receiving information receiving function 86 receives input of information indicating that the doctor 72 has received the orthokeratology lens based on the operation of the doctor 72 via the keyboard 80A and the IF unit 70A. The lens receiving information is stored in the lens receiving information storage unit 95 in the storage device 90.

The lens return information transmission function 87 is configured to transmit information indicating the return of the lens to the lens determination server 50 via the IF unit 70A and the Internet 14 based on the lens return information input from the keyboard 80A when the doctor 72 returns a used orthokeratology lens that has been used for corneal correction and has completed that stage of correction to the lens transmission mechanism 50D. This information is stored in the lens return information storage unit 96 in the storage device 90.

The test mirror information sending function 88 is configured to send information on the test mirror that is most suitable for treatment after the patient tries on multiple test mirrors (described later) sent to the patient to be tested, and the information is stored in the test mirror information storage unit 97.

The mirror data request sending function 89A is configured to send a request signal to the mirror decision server 50 when the doctor 72 requests the mirror data for manufacturing the orthokeratology lens for the patient, and the mirror data receiving function 89B is configured to send the data for determining the orthokeratology lens stored in the decision mirror storage unit 56 to the mirror data receiving and sending device 73 via the IF unit 50A.

The patient data acquisition device 71 is configured to acquire patient data including corneal D data, corneal diameter data, and pupil diameter data of the patient's cornea to be corrected. The patient data transmission function 84 can transmit the patient data to the mirror determination server 50 via the Internet 14 .

Specifically, as the patient data acquisition device 71, an Auto Kerato-Refractometer manufactured by Topcon Co., Ltd. (KP-8100PA), a Shin-Nippon Corneal Topographer manufactured by Ajinomoto Trading Co., Ltd. (CT-1000), or a Pentacam Corneal Topographer manufactured by Oculus Co., Ltd. is used.

The lens determination server 50 is configured to detect from the database 30B a registration lens for use on a cornea whose patient cornea D data is identical to or closest to the patient cornea D data of the above-mentioned cornea, and determine the detected registration lens as a corneal refractive therapy lens having a curvature suitable for use by the patient.

Next, the database creation process and the process of determining the orthokeratology lens will be explained with reference to Figures 7 and 8.

During the database creation process, as shown in step S101 of Figure 7 , an orthokeratology lens is placed on the patient's cornea to be corrected. At this point, the orthokeratology lens is placed at a position centered on the patient's pupil while the patient's head is upright. As a result, the orthokeratology lens descends along the corneal surface due to gravity. However, due to the relationship between the lens curvature of the contact surface and the corneal curvature of the cornea, the lens does not necessarily move vertically downward, and the descending speed of the orthokeratology lens also varies.

The inventors have found that orthokeratology lenses can be used to correct the cornea if they fully meet the conditions as described above: the moving speed is greater than 0 and less than 10 mm/s, and the moving direction is within 6 degrees to the right or left of the perpendicular line below the pupil.

Next, the process proceeds to step S102, where the mirror camera 24 captures the orthokeratology lens attached to the patient's cornea, continuously or intermittently capturing images of the lens moving on the cornea. The process proceeds to step S103, where the mirror movement data detection device 26 acquires movement data, including the movement speed and direction of the orthokeratology lens, from the image information captured by the mirror camera 24.

Next, in step S104, the determination device 28 determines whether the acquired movement data is within a fixed range. Specifically, it determines whether the movement speed exceeds 0 and is within 10 mm/s, and whether the angle of the movement direction relative to the perpendicular line passing through the center of the patient's pupil is within 6 degrees.

If the determination result is "yes", the process proceeds to the next step S105 to determine whether the orthokeratology lens is a registered lens that can be used for corneal correction. If the determination result is "no", the process proceeds to step S108.

If it is determined in step S105 that the orthokeratology lens can be used for treatment, in the subsequent step S106, the orthokeratology lens is used as a registration lens, and the registration lens correction D data, registration lens movement data, registration stage data, and registration patient data related to the registration lens are sent from the determination device 28 to the database server 30.

In the database server 30, the data transmitted above is received by the registration mirror correction D data receiving function 41, the registration mirror movement data receiving function 42, the registration phase data receiving function 43, and the registration patient data receiving function 44, and is stored in the registration mirror correction D data storage unit 31, the registration mirror movement data storage unit 32, the registration phase data storage unit 33, and the registration patient data storage unit 34, respectively. By repeating the above process, the database 30B is created.

In addition, it is set that in the control unit 40 of the database server 30, the difference between the patient's corneal D data and the lens correction D data of the orthokeratology lens used to correct the cornea can be calculated based on the registered patient data through the registered cornea/lens D difference data calculation unit 45, and the calculation result is stored in the registered cornea/lens D difference data storage unit 35 (refer to step S107).

Repeat the process of fitting the orthokeratology lens on the patient's cornea, determining whether the lens can be used, and storing the determination result in the database as described above. If there is no next lens in step S108, end the database creation process. If there is a next lens, proceed to step S109, fit the next orthokeratology lens, and repeat the next steps S102 to S108 again.

Next, the process by which the lens determination server 50 determines the orthokeratology lens most suitable for the patient's correction based on the data stored in the database 30B of the database server 30 and the data sent from the terminal device 70 will be described.

As shown in Figure 8, in step S201, in the terminal device 70, the patient data acquisition device 71 acquires patient data consisting of patient corneal D data, corneal diameter and pupil diameter data of the patient whose cornea is to be corrected, and sends it to the mirror determination server 50 via the Internet 14 (refer to step S202).

At this time, the doctor 72 inputs data indicating which stage of the multiple correction stages the current corneal correction is from the keyboard 80A of the terminal device 70 to the patient stage data receiving function 83 via the IF unit 70A. Furthermore, if the doctor 72 needs the lens data for manufacturing the orthokeratology lens determined by the server 50, the doctor 72 inputs lens data request information to the lens data request sending function 89A.

Furthermore, the patient data from the patient data acquisition device 71 is temporarily received by the patient data receiving function 82 via the IF unit 70A. The received patient data and patient session data are stored in the patient data storage unit 92 and the patient session data storage unit 93, respectively. Furthermore, the mirror data request information is stored in the mirror data request information storage unit 98.

The patient data sending function 84 and the patient stage data sending function 85 in the control device 80 of the terminal device 70 send the stored patient data and patient stage data to the mirror decision server 50 via the IF unit 70A and the Internet 14. In addition, the mirror data request sending function 89A sends the mirror data request information to the mirror decision server 50 via the IF unit 70A and the Internet 14.

In the mirror determination server 50, patient data and patient phase data are received by the patient data receiving function 62 and the patient phase data receiving function 63 in the control unit 60 and stored in the patient data storage unit 52 and the patient phase data storage unit 53, respectively, in the storage device 50B. Furthermore, mirror data request information is received by the decision mirror data request receiving and sending function 67A and stored in the decision mirror data request storage unit 53A in the storage device 50B. Furthermore, if the doctor 72 possesses a mirror camera equivalent to the mirror camera 24 at the time of the contract, this information is input from the mirror camera retention information receiving function 63A and stored in the mirror camera retention information storage unit 53B.

Proceeding to step S203, the database retrieval unit 64 of the mirror determination server 50 detects a registered mirror having data identical or similar to the patient data and patient stage data from the terminal device 70 from the database 30B in the database server 30 based on the patient data sent from the terminal device 70, or based on the patient data and patient stage data.

Proceeding to step S204, it is determined whether the difference between the detected registration cornea D data in the registration lens and the patient cornea D data in the patient data from the terminal device 70 is equal to or smaller than a fixed value (for example, 0.03D).

If the result of the determination is “yes”, the process proceeds to step S205 , and the registered mirror is stored in the decision mirror storage unit 56 as the decision mirror.

Here, the "difference" is set to 0.01mm of the corneal curvature radius. This is because the measurement device has a detection accuracy limit of 0.01mm. According to Table 3, the curvature radius converted to diopters (D) is 0.03D.

[Table 3]

Furthermore, when there are multiple registered lenses with the answer "yes", the registered lens having the registered corneal diameter data and registered pupil diameter data closest to the patient's corneal diameter data and the patient's pupil diameter data may be used as the decision lens.

From step S205 , the process proceeds to step S205A, where it is determined whether or not there is a request for scope data from the doctor 72 . If “No”, the process proceeds to step S206 .

In step S206, an instruction signal (lens data) for producing a corneal reshaping lens having the same data as the stored determined lens is sent to the lens manufacturing device 50C, where the corneal reshaping lens is produced.

If the answer is "yes" in step S205A, that is, if the lens data request information is stored in the lens data request storage unit 53A, the process proceeds to step S205B, where an instruction signal is sent to the lens data receiving and transmitting device 73 of the terminal device 70 via the Internet 14. In step S205C, the instruction signal is sent from the lens data receiving and transmitting device 73 to the terminal-side lens manufacturing device 74, thereby manufacturing orthokeratology lenses. Specifically, orthokeratology lenses are manufactured at a remote location for treatment.

Furthermore, the instruction signal is outputted by converting the diopter (D) in the lens correction D data into the lens curvature radius (mm) based on the diopter/millimeter conversion table shown in Table 3.

Lens manufacturing device 50C and terminal-side lens manufacturing device 74 manufacture orthokeratology lenses based on received data. They can be conventional ablation-type contact lens manufacturing devices or 3D printers. Terminal-side lens manufacturing device 74 is located at the location of doctor 72 or a lens manufacturer that cooperates with doctor 72, while lens manufacturing device 50C is located near lens determination server 50.

In step S207, the completed orthokeratology lens is directly obtained by the doctor 72 or provided to the doctor 72 from the lens manufacturer, and is sent to the doctor 72 who manages the operation terminal device 70 via the lens sending mechanism 50D without a lens data request.

If the result of determination in step S204 is "No," the process proceeds to step S208. Steps S208 to S210 are executed by the correction mirror correction D data calculation unit 65 in the control unit 60 of the mirror determination server 50 as follows.

First, in step S208, as shown in FIG9A and FIG9B, the cornea D data difference r1-r2=ΔC is calculated between the first registration cornea D data _r1 for the registration lens having data most similar to the cornea D data when the first lens is set as the first lens, and the second registration cornea D data _r2 when the second lens has data second most similar to the first lens. Then, in the next step S209, the registration lens correction D data difference _R1 - _R2 =ΔL is calculated when the registration lens correction D data of the _first lens and the _second lens are set to _R1 and _R2 , respectively.

In step S210, the product of the difference _Δr1 between the patient cornea D data _r0 in the patient data and the registration cornea D data _r1 in the first mirror and ΔL/ΔC is calculated, and the correction mirror correction D data is calculated by adding or subtracting this product from the registration mirror correction D data _R1 of the first mirror.

That is, the optic correction D per unit corneal D is calculated, multiplied by r ₀ - r ₁ = Δr ₁ to calculate the optic correction D value (difference) corresponding to the difference between r ₀ and r ₁ , and D ₀ is calculated by adding this value to R _1. For example, as shown in Figure 9A , when r ₀ > r ₁ > r ₂ and R ₁ > R ₂ , D ₀ = (r ₀ - r ₁ = Δr ₁ ) × ΔL/ΔC + R ₁ . When r ₁ > r ₀ > r ₂ and R ₁ > R ₀ > R ₂ , as shown in Figure 9B , D ₀ = R ₁ - Δr ₁ × ΔL/ΔC.

In the following step S211, a determination is made as to whether the aforementioned ΔL is equal to or less than a predetermined value, that is, whether the difference between the registered mirror correction D data for the first and second mirrors is excessive. If the difference is excessive, the reliability of the correction mirror correction D data is low. If the determination is "yes," the process proceeds to step S212; if not, the process proceeds to the subroutine described below (B: Figure 10).

In step S212, the correction data mirror determining unit 66 determines the corrective orthokeratology lens having the calculated correction lens correction D data as the determined mirror, and adds its data to the database 30B as indicated by the symbol A in Figures 7 and 8 . The process then returns to step S205, where the determined mirror is stored in the storage device 50B. In the following step S205A, it is determined whether or not a mirror data request has been received.

The correction mirror correction D data, correction data mirror, and decision mirror can also be stored in the correction mirror correction D data storage unit 54, correction data mirror storage unit 55, and decision mirror storage unit 56 in the storage device 50B, respectively, to constitute a part of the database.

If the determination result in step S205A is "yes", orthokeratology lenses are provided through the above-mentioned steps S205B and S205C, and if the determination result in step S205A is "no", the process proceeds to step S213.

In step S213, the lens manufacturing instruction function 67 of the lens determination server 50 transmits an instruction signal to the lens manufacturing device 50C to manufacture a correction lens having the calculated correction lens correction D data. In step S213, the correction lens is manufactured, and the process proceeds to step S207. In step S207, the correction lens is shipped from the lens delivery mechanism 50D to the location of the doctor 72.

Next, a case where the determination result in step S211 is "No" will be described.

In this case, as indicated by mark B, the process proceeds to step S301 shown in FIG. 10 .

In step S301 , the test mirror data creation unit 66A calculates creation data for a plurality of test mirrors.

First, assume ΔL/m = αL, and set m to an integer of 3≤m≤10. Calculate the m values of correction D obtained by adding αL, 2αL, ...mαL to the correction mirror correction D (correction mirror correction D + αL, correction mirror correction D + 2αL, ...correction mirror correction D + mαL), and the m values of correction D obtained by subtracting αL, 2αL, ...mαL from the correction mirror correction D (correction mirror correction D - αL, correction mirror correction D - 2αL, ...correction mirror correction D - mαL).

In the following step S302, it is determined whether there is a mirror data request. If "No", the process proceeds to the subroutine of Figure 11 from mark D. If "Yes", the process proceeds to step S303, and the data of the test mirror with the above-mentioned 2m types of correction D are sent to the terminal device 70.

In the next step S304 , the test mirror data is transmitted from the terminal device 70 to the terminal-side mirror manufacturing device 74 , and the test mirror is manufactured.

In step S305 , the doctor 72 has the patient wear the trial glasses.

In the next step S306, the doctor 72 determines whether the terminal device 70 includes a mirror camera similar to the mirror camera 24 in Figure 1. If "yes", the process proceeds to step S307 to use the mirror camera to photograph the test mirror worn by the patient.

Proceeding to step S308 , the movement data of the test mirror is obtained from the image obtained by the above-mentioned shooting, and in the following step S309 , the movement data is sent from the terminal device 70 to the determination device 28 of the selection device 20 via the Internet 14 .

Proceed to step S310, and use the most suitable test lens selected by the determination device 28 as the orthokeratology lens for treatment, as shown by mark A, return to the routine of Figure 7, and add the data together with the patient data to the database 30B.

Specifically, the data of the orthokeratology lens selected for treatment is transmitted from the terminal device 70 to the lens determination server 50, received by the lens determination test lens data receiving function 69A of the lens determination server 50, and stored in the lens determination test lens data storage unit 59A. Furthermore, the orthokeratology lens data used for treatment is transmitted from the lens determination server 50 to the control unit 40 of the database server 30 (see reference numeral A in FIG. 10 and FIG. 7 ) along with the patient data. The data is then added to the database 30B as registered lens data and registered patient data.

Returning to step S311, the data of the most suitable test mirror is sent to the terminal device 70, and the doctor 72 uses the test mirror with the sent data on the patient.

If the answer is "No" in step S306, the process proceeds to step S310, as indicated by mark E. Here, the most suitable trial lens selected by the doctor 72 is used as the orthokeratology lens for treatment, and its data is added to the database 30B along with the patient's data. After step S311, the most suitable trial lens is used for the patient in step S312.

Next, if the result of determination in step S302 is "No", the process proceeds to step S401 in the subroutine of Fig. 11 as indicated by mark D. This step S401 is the same as step S301 in Fig. 10 .

In the next step S402, a test mirror having the calculated 2m types of corrections D is manufactured by the mirror manufacturing device 50C.

The process proceeds to step S403, where the multiple test lenses produced are sent to the doctor 72. In step S404, the doctor 72 has the patient wear the test lenses and uses the most suitable test lens as the orthokeratology lens for treatment.

In the next step S405 , the data of the orthokeratology lens used for treatment is sent from the terminal device 70 to the lens determination server 50 .

Proceed to the next step S406, and add the data of the orthokeratology lens used for treatment together with the patient data to the database 30B.

Furthermore, according to the clinical trials conducted by the present inventors, 6 to 10 test lenses having the above-mentioned 2m types of correction D are sufficient.

Although the decision providing system 10 of the above embodiment includes the mirror manufacturing device 50C and the terminal-side mirror manufacturing device 74 , the present invention is not limited thereto and includes a case where only one of them is provided.

Furthermore, the present invention is applicable to both cases where the mirror camera 24 is included as part of the terminal device 70 or not.

Industrial applicability

It can be used to decide and manufacture orthokeratology lenses for corneal correction while reducing the burden on patients.

Description of Reference Numerals

10: Orthokeratology lens decision-making and provision system (decision-making and provision system); 14: Internet; 20: Selection device; 20A: IF unit; 20B: Patient data acquisition device; 21A, 40A, 60A, 80A: Keyboard; 21B, 40B, 60B, 80B: Display; 21C, 40C, 60C, 80C: Printer; 22: Mirror movement data acquisition device; 24: Mirror camera; 26: Mirror movement data detection device; 28: Determination device; 30: Database server; 30A: IF unit; 30B: Database; 31: Registration lens correction D data storage unit; 32: Registration lens movement data storage unit; 33: Registration phase data storage unit; 34: Registered patient data storage unit; 35: Registered cornea/lens D difference data storage unit; 40: Control unit; 41: Registered lens correction D data receiving function; 42: Registered lens movement data receiving function; 43: Registered stage data receiving function; 44: Registered patient data receiving function; 45: Registered cornea/lens D difference data calculation unit; 50: Lens decision server; 50A: IF unit; 50B, 90: Storage device; 50C: Lens manufacturing device; 50D: Lens sending mechanism; 51: Terminal information storage unit; 52: Patient data storage unit; 53: Patient stage data storage unit; 53A: Decision lens data request storage unit; 53B: Lens camera retained information storage unit; 54: Correction lens correction D data storage unit; 55: Correction mirror data storage unit; 55A: Test mirror data storage unit; 56: Decision mirror storage unit; 57: Mirror manufacturing instruction information storage unit; 58: Completion mirror information storage unit; 59: Mirror return information storage unit; 59A: Decision test mirror data storage unit; 60: Control unit; 61: Terminal setting information receiving function; 62: Patient data receiving function; 63: Patient stage data receiving function; 63A: Mirror camera retained information receiving function; 64: Database retrieval unit; 65: Correction mirror correction D data calculation unit; 66: Correction data mirror determination unit; 66A: Test mirror data production unit; 67: Mirror manufacturing instruction function; 67A: Decision mirror data request receiving and sending function; 68: Mirror completion information receiving function; 69: Mirror return information receiving function; 69A: Mirror data receiving function for determining test mirror data; 70: Terminal device; 70A: IF unit; 71: Patient data acquisition device; 72: Doctor; 73: Mirror data receiving and sending device; 74: Terminal side mirror manufacturing device; 80: Control device; 81: Terminal registration information sending function; 82: Patient data receiving function; 83: Patient stage data receiving function; 84: Patient data sending function; 85: Patient stage data sending function; 86: Mirror collection information receiving function; 87: Mirror return information sending function; 88: Mirror information sending function for determining test mirror information; 89A: Mirror data request sending function; 89B: Mirror data receiving function; 89C: Mirror data sending function; 91: Terminal registration information storage unit; 92: Patient data storage unit; 93: Patient stage data storage unit; 94: Data sending storage unit; 95: Mirror collection information storage unit; 96: Mirror return information storage unit; 97: Mirror information storage unit for determining test mirror information; 98: Mirror data request information storage unit.

Claims (17)

1. A system for determining the use of orthokeratology lenses, characterized in that, It includes a selection device, a database server, a mirror decision server connected to the database server, and a terminal device capable of connecting to the mirror decision server. The selection device is configured to include a lens movement data acquisition device and a determination device. The lens movement data acquisition device includes: a lens camera that captures images of the orthokeratology lens worn on the cornea at a position centered on the pupil of a patient with the head upright, continuously or intermittently acquiring images of its movement on the cornea; and a lens movement data detection device that detects lens movement data, consisting at least of data on movement speed and direction, from the image information of the orthokeratology lens movement on the cornea obtained by the lens camera. The determination device determines whether the acquired lens movement data is within a fixed range, and determines orthokeratology lenses within the fixed range as suitable for patient use. The orthokeratology lens suitable for patient use is used as a registration lens. Registration lens correction D data, registered patient data, and registration stage data are output to the database server. The registration lens correction D data consists of lens correction D data at the site of contact with the patient's cornea. The registered patient data includes at least one of the following: registered corneal D data, registered corneal diameter data composed of the patient's corneal diameter data, and registered pupil diameter data. The registered corneal D data consists of the D data of the cornea to be corrected at the contact site. The registration stage data consists of data indicating whether the registration lens is worn on the cornea in a series of correction stages, specifically in the first or second stage. The database server is configured to store the registered patient data and the registration stage data related to the registration mirror and to create the database. The terminal device includes a patient data acquisition device and a patient stage data acquisition device. The patient data acquisition device acquires patient data, which includes at least one of the following: patient corneal D-data (composed of the patient's corneal diameter data, composed of corneal diameter data, and pupil diameter data). The patient stage data acquisition device acquires patient stage data for the patient's cornea, indicating whether the next orthokeratology lens will be worn in the first stage of multiple correction stages, or in a later stage. The terminal device can send the patient data and the patient stage data to the lens decision server. The lens determination server is configured to: detect registered lenses from the database that have registered corneal D data that is closest to the acquired patient corneal D data and registered stage data that are the same as the patient stage data, and determine the detected registered lenses as corneal reshaping lenses for use by the patient. 2. The orthokeratology lens determination system according to claim 1, characterized in that, further, The selected device is configured to output registered hyperopia and myopia data to the database server, the registered hyperopia and myopia data consisting of data indicating whether the registered lens is for myopia correction or hyperopia/presbyopia correction. The database server is configured to store the registered farsightedness and nearsightedness data and create the database. The terminal device is configured to send patient myopia/hyperopia data, consisting of data indicating whether the glasses are for myopia correction or hyperopia/presbyopia correction, to the glasses determination server. The lens determination server is configured to detect registered lenses from the database that have registered corneal D data that is closest to the acquired patient corneal D data, as well as registered hyperopia and myopia data and registered stage data that are the same as the patient's hyperopia and myopia data and patient stage data, and determine the detected registered lens as the corneal reshaping lens for the patient. 3. The orthokeratology lens determination system according to claim 2, characterized in that, The determination device is configured to select an orthokeratology lens for use on a patient when the following conditions are met: the moving speed is greater than 0 and less than 10 mm/s, and the angle to the right or left of the vertical line below the pupil in the moving direction is within 6 degrees. 4. The orthokeratology lens determination system according to claim 2, characterized in that, The database server is configured to store corneal/lens D-difference data and create a lens database. The corneal/lens D-difference data is the difference between the patient's corneal D-difference data before wearing the orthokeratology lens and the registered lens-corrected D-difference data of the orthokeratology lens worn. 5. The orthokeratology lens determination system according to claim 3, characterized in that, The database server is configured to store corneal/lens D-difference data and create a lens database. The corneal/lens D-difference data is the difference between the patient's corneal D-difference data before wearing the orthokeratology lens and the registered lens-corrected D-difference data of the orthokeratology lens worn. 6. The orthokeratology lens determination system according to any one of claims 2 to 5, characterized in that, The lens determination server is configured such that, when the difference between the acquired patient corneal D data and the registered corneal D data closest to the patient corneal D data is equal to or greater than a fixed value, the detected registered lens is designated as the first lens, and the registered lens having registered corneal D data that is second closest to the acquired patient corneal D data is designated as the second lens. Furthermore, the registered corneal D data and the registered lens correction D data are designated as the first corneal D data and the first lens correction D data in the first lens, and as the second corneal D data and the second lens correction D data in the second lens. The corrective D difference per unit of corneal corrective D data difference is calculated by comparing the corneal D difference between the first corneal D data and the second corneal D data with the corrective D difference between the first lens corrective D data and the second lens corrective D data. The corrective D data of the corrective lens is calculated by adding or subtracting the product of the corrective D difference and the difference between the patient's corneal D data and the first corneal D data in the obtained patient data. The orthokeratology lens with the corrective D data is then used as the orthokeratology lens for the patient. 7. The orthokeratology lens determination system according to claim 6, characterized in that, The mirror determination server is configured to: when the mirror difference ΔL between the first mirror correction D data and the second mirror correction D data is equal to or greater than a fixed value, set ΔL/m＝αL, set m to an integer of 3≤m≤10, calculate the values of m types of correction D obtained by adding αL, 2αL…mαL to the correction D of the correction mirror respectively, and the values of m types of correction D obtained by subtracting αL, 2αL…mαL from the correction D of the correction mirror respectively, and output the manufacturing data of the test mirror with 2m types of correction D respectively. 8. The orthokeratology lens determination system according to claim 6, characterized in that, The database server is configured to store the corrective lens correction data, patient data, and patient stage data related to the orthokeratology lens determined based on the corrective lens correction D difference data as registration lens correction D data, registration patient data, and registration stage data, respectively, and create a lens database. 9. The orthokeratology lens determination system according to any one of claims 2 to 5, characterized in that, The mirror movement data detection device is an image analysis device, and the selection device is a central control device that has pre-stored data on allowable values for movement speed and direction. 10. The orthokeratology lens determination system according to claim 6, characterized in that, The mirror movement data detection device is an image analysis device, and the selection device is a central control device that has pre-stored data on allowable values for movement speed and direction. 11. The orthokeratology lens determination system according to any one of claims 1 to 5, characterized in that, It also has a mirror manufacturing device. The lens manufacturing apparatus is configured to manufacture a patient-wearable orthokeratology lens identical to the registered lens, based on the determined orthokeratology lens registration lens correction D data. 12. The orthokeratology lens determination system according to claim 6, characterized in that, It also has a mirror manufacturing device. The lens manufacturing apparatus is configured to manufacture a patient-wearable orthokeratology lens identical to the registered lens, based on the determined orthokeratology lens registration lens correction D data. 13. The orthokeratology lens determination system according to claim 11, characterized in that, The terminal device includes a lens data receiving and transmitting device configured to receive the registration lens correction D data of the registration lens corresponding to the determined orthokeratology lens sent from the lens determination server, and output the received registration lens correction D data to the lens manufacturing device. 14. The orthokeratology lens determination system according to claim 13, characterized in that, The mirror manufacturing apparatus is attached to the terminal device. 15. The orthokeratology lens determination system according to claim 14, characterized in that, The terminal device has a lens data request sending function, which requests the lens decision server to send the lens data of the registered lens that has been determined to be an orthokeratology lens to the terminal device. 16. The orthokeratology lens determination system according to claim 11, characterized in that, The mirror manufacturing apparatus is configured to receive the registered mirror correction D data via the Internet or directly from the mirror decision server. 17. The orthokeratology lens determination system according to claim 7, characterized in that, The mirror determination server is configured to send manufacturing data for test mirrors, each having 2m types of the aforementioned correction D, to the mirror manufacturing apparatus.