Effect of Optic Material and Haptic Deign on Anterior Capule Opacification and Capulorrhexi Contraction Original Reearch Article

Purpoe To examine the influence of optic material (ilicone and hydrophobic acrylic) and haptic deign (one-piece and three-piece open loop) of harp optic edge intraocular lene (IOL) on anterior capule opacification (ACO) and capulorrhexi contraction. Deign Randomized, controlled, double-blind clinical trial with intraindividual comparion. Method Thi tudy wa performed at the Department of Ophthalmology, Medical Univerity of Vienna, Autria, and compried 210 eye of 105 patient with bilateral age-related cataract. In group 1 (n = 53 patient), a three-piece acrylic IOL wa compared with a three-piece ilicone IOL. In group 2 (n = 52 patient), the three-piece acrylic IOL wa compared with the one-piece acrylic IOL. One year after the operation, tandardized digital lit-lamp image of ACO were taken; 1 week and 1 year after the operation, digital retroillumination image were taken to ae capulorrhexi ize. The intenity of ACO wa graded objectively (core, 0% to 100%), and the capulorrhexi area (quare millimeter) wa determined objectively. Reult One year after urgery, the mean ACO core wa 21% for the acrylic and 20% for the ilicone IOL (P = .4) in group 1 and 18% for both the three-piece and one-piece acrylic IOL (P = .87) in group 2. Concerning the amount of capulorrhexi contraction, there wa no ignificant difference between the IOL type that were evaluated in thi tudy (after Bonferroni-Holm correction, P > .05). Concluion In the hydrophobic harp optic edge IOL that were examined, neither the optic material nor the haptic deign had an influence on the amount of ACO or capulorrhexi contraction.