Capsulorhexis ovaling and capsular bag stretch after rigid and foldable intraocular lens implantation

Abstract

Modern rigid and foldable IOLs designed for the adult population implanted in the capsular bag of infants and children produced variable degrees of capsulorhexis ovaling and capsular bag stretch. The Miyake-Apple posterior video technique confirmed the well-maintained configuration of the capsular bag (with minimal ovaling) after implantation of a single-piece hydrophobic acrylic IOL because of its flexible haptic design.

Visual results and complications of primary intraocular lens implantation in infants aged 6 to 12 months

“…Part of the success of successfully correcting aphakia with IOL in infants may be due to the development of foldable IOLs, which are now being increasingly used in pediatric eyes, especially the AcrySof™ IOL [10]. We chose this single-piece foldable acrylic IOL (SA Series) from the Alcon company because the lens has very flexible haptics that facilitate 'in the bag' implantation in infants and minimizes ovaling of the capsulorrhexis' opening with a lower incidence of PCO [11][12][13], and we chose 3-piece Acrysof™ MA series IOL 'in the sulcus' in the case with a large rupture of the posterior capsule [14].…”

Incidence and influence of posterior capsule striae on the development of posterior capsule opacification after 1-piece hydrophobic acrylic intraocular lens implantation

“…1 Posterior capsule striae are observed after IOL implantation in the capsular bag during cataract surgery. Experimental studies [2][3][4][5] have attempted to determine how IOL implantation in the capsular bag influences the development of posterior capsule striae. The posterior video-photographic technique pioneered by Miyake and Miyake 6 and later modified and modernized by Apple et al 7 gave us greater insight into the possible mechanisms of the formation of folds or striae in the posterior capsule.…”

“…It has been hypothesized that the striae are the result of a disparity between the size of the IOL and the size of the capsular bag. [2][3][4] Furthermore, there are reports of the occurrence of posterior capsule opacification (PCO) in eyes in which capsule striae develop after implantation of a 3-piece hydrophobic acrylic IOL. 8 In an earlier study of 100 consecutive patients having age-related cataract surgery, 9 we found a 56% incidence of posterior capsule striae after implantation of a 3-piece hydrophobic acrylic IOL.…”

Single-piece AcrySof intraocular lens implantation in children with congenital and developmental cataract

“…Pandey et al 34 compared the amount of capsulorhexis ovaling and capsular bag stretch produced by various rigid and foldable IOLs implanted in postmortem human pediatric eyes. The 1-piece AcrySof IOL caused significantly less capsulorhexis ovaling and capsular bag stretch, and the Miyake-Apple posterior video technique confirmed the well-maintained configuration of the capsular bag resulting from the IOL's flexible haptic design.…”