CORNEAL TOPOGRAPHY - A CLINICAL-MODEL
CORNEAL TOPOGRAPHY - A CLINICAL-MODEL
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DOI：
10.1111/j.1475-1313.1986.tb00699.x
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发表时间：
1986-01-01
影响因子：
2.9
通讯作者：
WILSON, C
中科院分区：
文献类型：
--
作者：
GUILLON, M;LYDON, DPM;WILSON, C
一个角膜测量光角膜镜研究220只眼睛代表正常人口导致椭球角膜模型提出。该模型适用于刚性角膜晶状体的设计和人眼屈光系统计算机模型的计算。结果表明：(1)中央角膜测量与光性角膜镜测量之间存在系统性差异，这种差异在统计学上有统计学意义，但在临床上没有统计学意义；(2)大量角膜周围变陡；(3)角膜形状与正常人群差异很大；(4)周围和中心散光通常相似。
A keratometric photokeratoscopic study of 220 eyes representative of a normal population leads to the ellipsoid corneal model proposed. This model is applicable to the design of rigid corneal lenses and to the calculation of computer models of the dioptric system of the eye. The results obtained show that (1) there is a systematic difference between central keratometric and photokeratoscopic measurements that is statistically but not clinically significant, (2) a significant number of corneas steepen at the periphery, (3) the corneal shape varies greatly with a normal population and (4) peripheral and central astigmatisms are usually similar.