METHOD FOR CATARACT EXTRACTION USING ND:YAG LASER AT WAVE LENGTH 1,44 MCM IN PATIENTS WITH PARTIAL DAMAGE OF TENDON OF ZINN AND VITREOUS HERNIA Russian patent published in 2013 - IPC A61F9/08 A61F9/07 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, more specifically to ophthalmology, and may be used in laser cataract extraction with weak tendon of Zinn and vitreous hernia. A corneal approach to an anterior chamber is formed; a mydriatic and a viscoelastic are administered. A capsulorhexis is formed; an intracapsular ring is inserted, and a hydrodissection procedure follows. A nucleus of crystalline lens is removed with lens mass, and an intraocular lens is implanted. The nucleus of crystalline lens is destroyed using ND:YAG laser at wave length 1.44 mcm. Pulse length is 250 ms; power is 100 to 250 mJ; pulse repetition frequency is 10 to 30 Hz; emission power is 1 to 4 Wt; exposure time is 1 to 3 seconds. At the stage of the lens mass wash-out, vitreous cords are fixed in the vacuum mode of 150 mm Hg using an aspiration tip at the side of capsulorhexis. They are separated using ND:YAG laser at wave length 1.44 mcm, power 100 mJ, pulse length 250 ms, pulse repetition frequency 30 Hz, emission power 2 Wt, exposure time 2 seconds.

EFFECT: method provides the cataract extraction in a combination with the single-stage separation of single vitreous cords with reducing the intra- and postoperative complications, including shape deformation of the pupil and anterior lens capsule, and also preventing misalignment of the intraocular lens.

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