OCULAR BIOMETRY IN PRIMARY ANGLE CLOSURE GLAUCOMA

OBJECTIVE To compare the ocular biometric values. Anterior chamber depth, axial length of normal subjects and primary angle closure glaucoma subjects. MATERIALS AND METHODS A prospective case control study of 50 subjects (50 eyes) with equal number of cases and matched controls were studied in a tertiary care centre. Both groups underwent a complete ocular examination with slit lamp biomicroscopy, indentation gonioscopy and ocular biometry using ultrasound 'A' scan. Ocular biometric readings between the groups were compared by using unpaired t-test/Mann Whitney 'U' test. RESULTS Mean (SD) age (In years) among normal 50.6 (8.8) and angle closure glaucoma subjects 54.4 (8.3) is not statistically significant. Mean (SD) anterior chamber depth is shallow in PACG 2.34 (0.21) compared to normal subjects 3.03 (0.37) and Mean (SD) axial length is shorter in PACG 21.50 (0.92) compared to normal subjects 22.51 (0.84), (P<0.0001) which is statistically significant. CONCLUSIONS The study shows that eyes with angle closure glaucoma have shorter axial length and shallower anterior chamber depth compared to normal eyes.