METHOD FOR REPOSITION AND LIGATION OF A SINGLE-PIECE INTRAOCULAR LENS, DISLOCATED TOGETHER WITH A CAPSULAR SAC Russian patent published in 2020 - IPC A61F9/07 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to ophthalmology. Two oblique diametrically opposite corneal paracenteses are intraoperatively performed above a predetermined projection of IOL haptic elements. Through the first paracentesis, 0.1–0.2 ml of the cohesive viscoelastic is introduced into the anterior chamber above the manipulation zone and the dislocated complex IOL – a capsular sac is centered. Then, pupillary edge of iris is displaced towards periphery by 2.0–3.0 mm in four quadrants. Then, the first paracentesis with the needle with the suture is introduced into the anterior chamber, the iris is pierced, the front leaf of the capsule of the lens and passing under the nearest haptic element IOL with the posterior capsule grip, removing the needle by piercing the capsular sac, the iris and the cornea sequentially with the needle, until the needle eye is between the iris and the cornea, wherein the needle prick-out point is displaced relative to the first paracentesis by 90 angular degrees, then, without completely removing the needle from the cornea, the needle is rotated through 90 angular degrees in parallel to the iris and goes over it towards the second paracentesis with its eye forward. Reaching half of the length of the needle through the second paracentesis, the needle is re-turned through 90 angular degrees and a second prick-in is performed in the iris in the projection of the second paracentesis, the front leaf of the lens capsule is pierced and passing under the second haptic element IOL with the posterior capsule grip, needle is withdrawn by puncturing with a needle a capsular sac, an iris and a cornea until the eye of the needle is between the iris and the cornea. Then, the needle is turned through 90 angular degrees in parallel to the iris towards the first paracentesis and, passing above the eyelet forward, the needle is removed from the anterior chamber through the first paracentesis. In the lumen of this paracentesis, a nodular suture is formed and the needle is cut off.

EFFECT: method enables improving the uncorrected visual acuity, preserving the iris diaphragm function, reducing the risk of postoperative inflammatory reactions and quickly rehabilitating the patient.

1 cl, 1 dwg, 4 ex