The effect of non-complete covering of the intraocular lens optics by the capsulorhexis edges and intraocular lens types on the formation of posterior capsular opacification after cataract surgery

Abstract

Most cataract patients recover their visual performance after cataract surgery. However, in 10%-30% of patients, these performances is reduced by posterior capsular opacity several years after surgery. The non-complete covering (NCC) of the intraocular lens optics by the capsulorhexis edges and intraocular lens types affect the degree of posterior capsular opacity. We retrospectively reviewed the medical records of 30 patients to examine which of these two factors, the degree of NCC and intraocular lens type, had a greater impact on the formation of Erschnig pearls (EPs). EPs are a type of posterior capsular opacity that significantly decreases visual performance. The formation of EPs was evaluated by invading points under the intraocular lens optics, its area, time of appearance, and time of neodymium-yttrium aluminum garnet (Nd: YAG) laser capsulotomy after surgery. These indicators were not affected by the degree of NCC. intraocular lens However, the time of EPs appearance after cataract surgery was significantly affected by the intraocular lens type. These findings suggest that the formation of EPs may be affected by the intraocular lens type rather than the degree of NCC.