Topographic Central Island after Excimer Photorefractive Keratectomy.

Park, Hyun Joon; Tchah, Hung Won; Kim, Yong Jai

Original Article

Journal of the Korean Ophthalmological Society 1995;36(4):559-565.
Published online April 1, 1995.

Topographic Central Island after Excimer Photorefractive Keratectomy.

Hyun Joon Park, Hung Won Tchah, Yong Jai Kim

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

엑시머 레이저 근시교정술후 각막지형도에 나타나는 중심부융기

차흥원(Hung Won Tchah),김용제(Yong J. Kim),박현준(Hyun Joon Park)

Abstract

We analyzed the topographic findings of central islands following excimer photorefractive keratectomies(VISX Twenty/Twenty, Inc, Santa Clara, CA) for myopia to evaluate whether the size of the central island was significantly different betwaen 1 week and 6months postoperatively and whether central island at postoperative 6months affected the decrease of corrected visual acuity from preoperative level. There were statistically significant differences in the indices related to the size of central island(peak, height, area) between 1 week(40 patients, 41 eyes) and 6 months(55 patients, 64 eyes) follow-up groups. In 64 eyes of 6months follow-up group, we could not find any statistically significant effect of the indices related to the size of central island on the decrease of corrected visual acuity, except SAI.

Key Words: Central island;Corrected vision;Excimer photorefractive keratectomy;Topographic findings