The Change of Astigmatism After Cataract Extraction with Double Horizontal Suture.

Sohn, Joon Hong; Tchah, Hungwon

Original Article

Journal of the Korean Ophthalmological Society 1993;34(5):403-407.
Published online May 1, 1993.

The Change of Astigmatism After Cataract Extraction with Double Horizontal Suture.

Joon Hong Sohn, Hungwon Tchah

Department of Ophthalmology, Ulsan University College of Medicine, Asan Meoical Center, Seoul, Korea.

이중 평행봉합에 의한 백내장 수술후의 난시 변화

손준홍(Joon Hong Son),차홍원(Hung Won Tchah)

Abstract

We analysed a series of cataract surgery cases into two groups. double horizontal suture group and shoelaces running suture group. We modified horizontal suture technique putting two separate sutures before opening the anterior chamber. Shoelaces running suture group showed early with-the-rule astigmatism about 2 diopter, which decayed over time reaching breakout point at 8 weeks, then very little change. Double horizontal suture group also showed early with-the-rule astigmatism, but the amount was less than half a diopter, which decayed over time, reaching break point at 4 yveek, stabilizing thereafter. After 8 weeks there was no statistical difference between two groups. In summary, double horizontal suture results in less astigmatism and therefore better visual acuity immediatedly after the surgery (p<0.005, student t-test) and for the first 2 months compared to shoelaces running suture.

Key Words: Astigmatism;Cataract extraction;Horizontal suture