The ratio of lens thickness to axial length for biometric standardization in angle-closure glaucoma.
Biometric measurements were made by ultrasonography in 44 left eyes of 44 patients with primary angle-closure glaucoma. We defined the ratio between the lens thickness and the axial length (lens thickness/axial length factor) as a representative and unifying unit for biometric assessment of the eye. This factor defined the relationship between the lens, iris, and cornea and thus the status of the angle. Lens thickness/axial length factor values were found to be age dependent and were greater than normal for most age groups with angle-closure glaucoma. The mean normal value was 1.91 +/- 0.44; the mean values for patients in different age groups with angle-closure glaucoma ranged from 1.87 +/- 0.11 to 2.39 +/- 0.17.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D000886:Anthropometry; D002648:Child; D005123:Eye / Q000033:anatomy & histology* / Q000473:pathology; D005260:Female; D005901:Glaucoma / Q000473:pathology*; D006801:Humans; D007908:Lens, Crystalline / Q000033:anatomy & histology* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography