RU2002115649A - Method for surgical laser and ultrasonic extraction of cataracts of any genesis - Google Patents

Claims (4)

1. A method of surgical laser and ultrasonic extraction of cataracts of any genesis, including carrying out epibulbar and retrobulbar anesthesia, then akinesia of a circular muscle, performing a 2-4 mm tunnel corneal or sclerorneal incision, performing a circular capsule-lorexis of the anterior lens capsule, performing hydrodissection, performing hydrodelineation, preliminary crushing of the lens nucleus into fragments by pulsed laser radiation with a wavelength of 1440 nm, a radiation power of 50-300 mJ at a frequency of 10-30 Hz per second 5-30 seconds, the continuation of the destruction of pre-fragmented by laser energy fragments of the lens nucleus with ultrasonic energy of 12-18 W with a frequency of 30000-60000 Hz with a touch of a fragment of the lens with an ultrasonic tip of the phacoemulsifier at an operation time of 15-60 s, the lenses are crushed by the cannula of the phacoemulsifier in the mode irrigation - aspiration, filling the capsular bag with viscoelastic, implantation of an intracapsular artificial lens and subconjunctival administration of a corticosteroid and antibiotic. 2. The method according to claim 1, including the use of laser energy fragmentation of 130-170 mJ for fragmentation of the yellow lens nuclei, energy of 180-250 mJ for the fragmentation of brown lens nuclei and energy of 250-300 mJ for the fragmentation of dark brown nuclei. 3. The method according to claims 1 and 2, including fragmentation of the nuclei of the lens by laser energy into 2-8 parts. 4. The method according to claims 1-3, comprising administering dexazone or dexamethasone at a dose of 2-4 ml as a corticosteroid and administering gentamicin at a dose of 2-4 ml as an antibiotic.