METHOD FOR SECURING A FLEXIBLE PUPILLARY INTRAOCULAR LENS OF THE RSP-3 MODEL AFTER CATARACT PHACOEMULSIFICATION IN PATIENTS WITH GRADE 3 TO 4 LENS SUBLUXATION ASSOCIATED WITH TRAUMATIC MYDRIASIS Russian patent published in 2021 - IPC A61F9/07 

FIELD: medicine.

SUBSTANCE: invention relates to the field of medicine, namely to ophthalmology. In order to secure a flexible pupillary intraocular lens of the RSP-3 model after cataract phacoemulsification in patients with grade 3 to 4 lens subluxation associated with traumatic mydriasis, local anesthesia is performed. A corneal tunnel incision and two paracenteses are made, viscoelastic is introduced into the anterior chamber. The nucleus of the lens is removed through the tunnel incision together with the capsule of the lens. Three-port subtotal vitrectomy is then performed, an RSP-3 IOL is implanted through the tunnel incision. Next, two basal colobomas of the iris are performed through any of the free ports using a vitreoctomy cutter so that the haptic elements of the RSP-3 IOL do not cover the colobomas. An additional paracentesis is performed at 7 o'clock. Then the RSP-3 IOL is then sutured at a distance of 3 mm from the pupillary edge of the iris using a circular suture, wherein the curved needle with the suture material is passed through the corneal tunnel incision at 11 o'clock, leaving one end of the suture material outside of the incision, and continuous sutures are applied to the iris from 10 to 7 o'clock. The needle is then removed through an additional paracentesis at 7 o'clock, intercepted and inserted back into the same paracentesis, continuing to apply continuous sutures from 7 to 3 o'clock. The needle is then removed through the paracentesis at 3 o'clock, intercepted and inserted back into the same paracentesis, thus the circular suture is finished by applying continuous sutures from 3 to 10 o'clock. The second end of the suture material is then removed into the tunnel incision at 11 o'clock, and both ends are tightened using a single loop suture. Then the viscoelastic is removed from the anterior chamber, followed by hydration of the paracenteses and tunnel incision with saline solution. Subconjunctival injection of dexazone 1 mg and gentamicin 10 mg is performed.

EFFECT: method provides reliable fixation of RSP-3 IOL, reduction in the level of hemorrhagic complications and the amount of repeat dislocations of the IOL into the vitreal cavity, as well as the risk of retinal detachment.

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