METHOD FOR REPOSITION OF “IOL-CAPSULAR SAC” COMPLEX DISLOCATED IN VITREAL CAVITY Russian patent published in 2024 - IPC A61F9/07 A61F2/16 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to ophthalmology. Performing vitrectomy with introduction of perfluoroorganic compound (PFOC) on macular area. Then forceps are inserted into the vitreous cavity through the port and the “IOL-capsular sac” complex is held with the help of the forceps; the capsular sac is dissected from one side of the IOL perpendicular to the longitudinal axis of the IOL in the direction of the centre of the optical part of the IOL. Then, on the other side of the IOL, a vitreotome is used to form two holes in the capsular sac along the edges of the middle part of the haptic elements, as in Fig. 3, at 1.5 mm from the edge of the haptic elements. Further, the IOL is intercepted with forceps through the access in the capsular sac with the IOL fixation by the optical part and the “IOL-capsular sac” complex is positioned behind the iris so as to visualize one of the haptic elements and the first formed hole in the capsular sac, after which in a projection of a haptic element, a needle with a suture is inserted translimbally, the needle is brought to the iris, and at distance of 2 mm from the pupillary edge and 1.5 mm from the edge of the haptic element, the first iris puncture is made from outside to inside. Further, a suture with a needle is passed through the formed hole in the capsular bag, then under the haptic element, and on the other side, a second puncture is made from the inside to the outside in the capsular bag, and a second iris puncture is made at distance of 1.5 mm from the edge of the haptic element and 2 mm from the pupillary edge and needle pricking out translimbally. Then, in the middle between the iris punctures in the cornea, a paracentesis is performed, where the ends of the sutures are brought out, which, when held together, are pulled up, suture ends are cut and fused by means of a bipolar thermocoagulator to form a single spherical formation – a flange, which is filled through a paracentesis into the anterior chamber. Further, the second haptic element is sutured to the iris in a similar way, after which the PFOC is removed and the operation is completed.

EFFECT: method enables reducing the volume of the surgical intervention with minimizing the mechanical traumatisation of the macular region and increasing the reliability of fixation of the “IOL-capsular sac” complex deployed in the vitreous cavity.

1 cl, 2 ex, 3 dwg