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Study supports differences in corneal thickness between whites, blacks

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SAN FRANCISCO — Black patients with primary open-angle glaucoma have thinner central corneas compared with whites, according to a study presented here. Gender, however, does not seem to play a significant role, the study found.

Karanjit S. Kooner, MD, and colleagues conducted a prospective study to determine the effect of race and gender on central corneal thickness (CCT). Data from the study were presented here at the American Glaucoma Society meeting.

Of the 232 patients in the study, CCT averaged 538.57 µm for black patients and 553 µm for white patients (P < .01). No statistically significant differences were seen between black males and females or between white males and females, Dr. Kooner said.

Dr. Kooner noted that measurements of mean intraocular pressure were significantly different in black patients (20.03 mm Hg) and white patients (18.88 mm Hg) using pneumatic tonometry (P < .05).