RESULTS OF SURGICAL TREATMENT OF IOL DISLOCATION

Abstract

Purpose. The analysis of clinical results in the replacement of dislocated posterior chamber IOL with capsular bag (CB) to the iridovitreal IOL RSP-3 (Russia) via a scleral-corneal tunnel incision.Material and methods. The study included 26 patients (26 pseudophakic eyes) with a dislocation of the IOL capsular bag (CB) complex after the previously performed phacoemulsification (PE), who underwent a removal of IOL with CB through a scleral-corneal tunnel incision with the following implantation of irido-vitreal IOL RSP-3.Besides the standard examination, the patients underwent a corneal endothelium count test before operation, at discharge, 1, 6 and 12 months later.Results. The dislocated IOL occupied from 20 to 50% of the pupil area causing complaints on a low visual acuity (VA), ineffectiveness of spectacle correction and binocular or monocular diplopia.All operations passed uneventfully. The early postoperative period was non-reactive in the majority of cases.It was possible intraoperatively to preserve a stable depth of anterior chamber using viscoelastic Discovisc (Alcon), thus, avoiding a rupture of anterior hyaloid membrane of vitreous body and damage of corneal endothelium.The best corrected VA (BCVA) increased from 0.32±0.05 to 0.81±0.1 in the dynamics of postoperative period, induced astigmatism indexes decreased in the absence of negative dynamics of endothelium cell density (the loss of corneal endothelium cells averaged 4.7% from the initial level).Conclusion. The used surgical method of replacement of the dislocated IOL-CB complex after the PE of senile cataract to the iridovitreal IOL RSP-3 via the scleral-corneal tunnel minimizes the risks of intra- and post-operative complications. The advantages of this technology are the safety, low indexes of induced corneal astigmatism, and high and stable visual effect.

Keywords

• posterior chamber intraocular lenses
• iol dislocation
• capsular bag
• rsp-3
• scleral-corneal tunnel incision