1475-1313/asset/cover.gif?v=1&s=00595b8fc7bc72d11739ce2ee476f3ad0e3fefc6 "Ophthalmic and Physiological Optics")
Part of the results of this study was presented at the 12th Asia–Pacific Optometry Congress, The Philippines, March 1999.
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Corneal shape of Hong Kong-Chinese†
Article first published online: 4 SEP 2002
DOI: 10.1046/j.1475-1313.2000.00488.x
Additional Information
How to Cite
Cheung, S.-w., Cho, P. and Douthwaite, W. (2000), Corneal shape of Hong Kong-Chinese. Ophthalmic and Physiological Optics, 20: 119–125. doi: 10.1046/j.1475-1313.2000.00488.x
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Publication History
- Issue published online: 4 SEP 2002
- Article first published online: 4 SEP 2002
- Received: 15 January 1999; Revised form: 25 June 1999
- Abstract
- Cited By
Summary
Corneal asphericity (the p-value, p) and apical corneal radius (r0) were calculated for 63 Hong Kong-Chinese (39 male and 24 female), using the Topographic Modeling System (TMS-1). The values of p and r0 in, and between, the two principal meridians were compared, and the effects of refractive error and gender were also investigated. The mean±SD r0 and p along the flattest meridian of the right eye were 7.82±0.26 mm and 0.78±0.12 respectively. The mean±SD r0 and p along the steepest meridian of the right eye were 7.64±0.26 mm and 0.83±0.15 respectively. Meridional variations were found in r0 and in p. There was no correlation between p and r0 along the two principal meridians. p was not significantly correlated to the refractive error but r0 was. Our results agree with previous findings that while males have longer r0 than females, their p are not significantly different.