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The Position of the Corneal Apex in the Normal Eye

 

作者: ALAN TOMLINSON,   CAROL SCHWARTZ,  

 

期刊: American Journal of Optometry and Physiological Optics  (OVID Available online 1979)
卷期: Volume 56, issue 4  

页码: 236-240

 

ISSN:0093-7002

 

年代: 1979

 

出版商: OVID

 

关键词: corneal apex position;visual axis;photokeratoscopy;shape factor;contact lens centering

 

数据来源: OVID

 

摘要:

The position of the apex of the cornea was found for 1000 “normal” eyes (500 right; 500 left) from photoelectronic keratoscopic analysis. The corneal apex was located on the vertical meridian in 21.3% of the eyes, temporally in 62.4%, and nasally in 16.3%. Although a temporally biased location for the corneal apex was demonstrated, 62.2% of the eyes had the apex within 0.5 mm of the visual axis. The implications of these findings in contact lens fitting are discussed.

 

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