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Link to original content: https://pubmed.ncbi.nlm.nih.gov/9307646/
Biometry and primary angle-closure glaucoma among Chinese, white, and black populations - PubMed Skip to main page content
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Comparative Study
. 1997 Sep;104(9):1489-95.
doi: 10.1016/s0161-6420(97)30112-2.

Biometry and primary angle-closure glaucoma among Chinese, white, and black populations

N G Congdon  1 , Q Youlin, H Quigley, P T Hung, T H Wang, T C Ho, J M Tielsch
Affiliations
Comparative Study

Biometry and primary angle-closure glaucoma among Chinese, white, and black populations

N G Congdon et al. Ophthalmology. 1997 Sep.

Abstract

Purpose: Primary angle-closure glaucoma (PACG) is more prevalent among Chinese than whites. The authors tested the hypothesis that Chinese have shallower anterior chambers than do whites, a factor that may be related to PACG prevalence.

Methods: The authors compared anterior chamber depth, axial length, radius of corneal curvature, and refractive error among 531 Chinese, 170 whites, and 188 blacks older than 40 years of age using the same model of instruments and identical technique.

Results: Mean anterior chamber depth and axial length did not differ significantly for the three groups. Whites had a significantly higher prevalence of hyperopia > 2 diopters than did Chinese. Radius of corneal curvature was significantly smaller among Chinese than whites or blacks.

Conclusions: These results suggest that Chinese do not differ on a population basis from other ethnic groups in many of the biometric risk factors known to be of importance for PACG. It will be necessary to identify other ocular biometric parameters to explain the excess burden of PACG among Chinese, which may improve the effectiveness of screening for this disease in all populations.

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