Ocular biometry in occludable angles and angle closure glaucoma: a population based survey. Issue 4 (1st April 2003)

• Record Type: Journal Article
• Authors: George, R; Paul, P G; Baskaran, M; Ve Ramesh, S; Raju, P; Arvind, H; McCarty, C; Vijaya, L
• Is Part Of: British journal of ophthalmology. Volume 87:Issue 4(2003)
• Page Start: 399
• Page End: 402
• Publication Date: 2003-04-01
• Subjects: Ophthalmology -- Periodicals; 617.7
• DOI: 10.1136/bjo.87.4.399
• Languages: English
• ISSNs: 0007-1161

Abstract

Abstract : Aim: To compare ocular biometric values in a population based sample of eyes with occludable angles, angle closure glaucoma, and normal subjects. Method: 2850 subjects from a population based glaucoma prevalence study underwent complete ocular examination including indentation gonioscopy. Ocular biometry was performed in all subjects classified to have occludable angles (n = 143); angle closure glaucoma (n = 22), and a random subgroup of 419 normal subjects. Ocular biometry readings between the groups were compared and statistically analysed using "t, " "z, " and Mann-Whitney U tests. Results: The mean age among subjects with occludable angles (54.43 (SD 9.53) years) and angle closure glaucoma (57.45 (8.5) years) was significantly higher (p<0.001) than normal subjects (49.95 (9.95) years). Axial length was shorter (p<0.001) in the occludable angle group (22.07 (0.69) mm) compared to the normal group (22.76 (0.78) mm). Anterior chamber depth (ACD) was shallower (p<0.001) among subjects with occludable angles (2.53 (0.26) mm) than normal subjects (3.00 (0.30) mm). Lens thickness (LT) was greater (p<0.001) in people with occludable angles (4.40 (0.53) mm) compared to normal subjects (4.31 (0.31) mm). No significant difference was noted in axial length, ACD (p = 0.451), and LT (p = 0.302) between angle closure glaucoma and occludable eyes. Conclusion: South Indian eyes with angle closure glaucoma and occludable angles seem to have significantly shorter axial lengths, shallower anterior chambers and greater lens thickness compared to the normal group.