Refractive error characteristics in patients with congenital blepharoptosis before and after ptosis repair surgery

Abstract

Background: We examined the effect of surgical repair on the pattern of refractive errors in Korean patients with congenital blepharoptosis. Methods: We reviewed the clinical records of 54 patients with congenital blepharoptosis who attended our hospital from 2006 to 2012 and underwent a detailed refractive examination before and after ptosis repair surgery. Among them, 21 of the patients whose refractive data was available for both before and after the surgery were included in order to observe the effect of ptosis repair surgery on refractive error characteristics. The astigmatism groups were divided into three subgroups: with-the-rule (WTR), against-the-rule (ATR), and oblique astigmatism (OA). We also evaluated the severity of astigmatism. Results: Before surgery, the ptotic eyes had more severe astigmatism and a greater percentage of OA than the fellow eyes. The changes in astigmatism magnitude before and after surgery were not significant, but the proportion of subjects with OA increased significantly. In ptotic eyes, amblyopia was found in 14 eyes (20.9 %). 3 eyes (4.5 %) were from solely occlusive visual stimulus deprivation due to severe ptosis, and 11 eyes were from refractive errors. Among refractive errors, amblyogenic astigmatism made up to the largest proportion of patients (8 patients, 11.9 %). Conclusions: Ptotic eyes had more severe astigmatism and more OA than fellow eyes. Amblyogenic astigmatism was more common in ptotic eyes. A change in astigmatism toward the OA axis was significantly detected after surgery, and that can be possible amblyogenic cause. Therefore, the correction of astigmatism before and after ptosis repair surgery is very important to prevent amblyopia.

Retracted: Prevalence of refractive errors and corneal topographic changes in unilateral congenital ptosis vs the fellow eye: a clinical study

“…10,11,17 Huo L et al, considered >0.75D as astigmatism while Paik Ji-Sun et al defined amblyogenic astigmatism as ≤1.5 D and found significantly more prevalence of refractive astigmatism (47.76%) in eyes with ptosis. 13,18 The different criteria used for defining astigmatism might be the reason for the higher prevalence of astigmatism in ptotic eyes seen in the present study. Similar findings were seen on comparison of astigmatism by corneal topography termed as Sim K astigmatism between eyes with and without ptosis.…”

Mean Change in Refractive Status After Levator Muscle Resection in Patients of Simple Congenital Ptosis

“…Of these patients, 70% had significant refractive error, 43% had astigmatism of more than 1.0 D, 55% had anisometropia of more than 1.25 D sphere or 0.75 D cylinder, 27.5% had strabismus, and 50% had amblyopia 18 . In cases of unilateral Ptosis, the drooping eye has more amblyogenic refractive error than the normal eye 19,20 .…”

Optical quality assessment in patients with unilateral congenital ptosis: a matched case-control study

“…Eyelid position has been found to be an important factor contributing to the aberration changes [4,5,[13][14]. For objective visual quality changes in ptosis, nearly all studies have focused on the differences in lower-order aberration between ptosis eyes and normal eyes [15][16][17][18] and only a few researches have aimed at the HOAs changes in ptosis eyes. However, there are still no studies investigating the corneal HOAs and intraocular scatter changes in ptosis eyes.…”