Journal of the Korean Ophthalmological Society 2003;44(11):2480-2485.
Published online November 1, 2003.
A Study on the Location of Corneal Thinnest Point and Corneal Thickness in Midperiphery.
Hye Ra Kang, Yong Woo Kim, Sang Duck Kim, Jae Duck Kim
Department of Ophthalmology, School of Medicine, Wonkwang University, Korea. mtjiri@wmc.wonkwang.ac.kr
Corneal Thinnest Point 위치와 각막두께에 대한 연구
강혜라 ( Kang Hye La ) , 김용우 ( Kim Yong U ) , 김상덕 ( Kim Sang Deog ) , 김재덕 ( Kim Jae Deog )
Abstract
PURPOSE
To evaluate the association with corneal thickness and corneal thinnest point using Orbscan topography. METHODS: One hundred and four eyes of the 52 normal subjects who were investigated using an Orbscan topography, were devided into following two groups ; one was inferonasal group which has the thinnest point in inferonasal quadrant(23 eyes, 22.1%), and the other was inferotemporal group which has the thinnest point in inferotemporal quadrant. (79 eyes, 76%) Among them, age-matched 30 eyes were randomly selected. The corneal thickness of two groups were measured at eight meridian of each point distant 1.0, 1.5, 2.0, 2.5, 3.0mm from corneal center. The thickest point and the thinnest point of cornea in two groups were compared and analysed. RESULTS: The thickest point of cornea in two groups was located in the superior portion. The thinnest quadrant was located in the inferonasal portion for inferonasal group and in the inferotemporal portion for inferotemporal group. CONCLUSIONS: The quadrant where the thinnest quadrant existed had the thinnest corneal thickness in comparing with any other quadrant.
Key Words: Corneal thickness;Corneal thinnest point;Orbscan topography


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