PROCESS FOR FIXING AN INTRAOCULAR LENS IN A CAPSULAR BAG DURING SURGERY FOR CATARACTS COMPLICATED BY SEVERE LENS SUBLUXATION Russian patent published in 2023 - IPC A61F9/07 

FIELD: medicine; ophthalmology.

SUBSTANCE: installation of iridocapsular retractors (ICR) with an emphasis on the equator of the capsular bag, phacoemulsification (FEC) of the lens nucleus, implantation, centring and suturing of the inocular lens are carried out. After the PE, implantation and centralization of the inocular lens, the retractor located at the haptic element is removed from the capsular bag and the iris is retracted to the maximum. The clamps of the two ICRs located next to the retracted retractor are sequentially loosened and the retractors are transferred into the capsular bag behind the inocular lens, turning them so that the working part of the ICR is facing the centre of the pupil and is between the posterior capsule and the inocular lens. After visualization of the haptic element under visual control, the iris and anterior capsule are pierced, the needle is passed under the haptic element of the inocular lens and removed from the opposite side of the haptic element. After that, the fourth retractor, located in the area where the second haptic element is located, is also removed from the capsular bag, the iris is retracted to the maximum, and the iris and anterior capsule are pierced under visual control. After suturing the inocular lens, the ICR is removed, the pupil is constricted, and interrupted sutures are tied, pulling the inocular lens forward, depending on the required refraction. The operation is completed by washing out the viscoelastic from the anterior and posterior chambers and hydrating the incisions.

EFFECT: process allows for minimizing the risk of damage to the posterior capsule and intraocular structures by passing the needle under the haptic element under visual control and creating a sufficient distance for needle manipulation between the inocular lens and the posterior capsule and reducing the trauma of surgical intervention.

1 cl, 2 ex