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PURPOSE: To evaluate the progression of glaucoma after first detected disc hemorrhage (DH) by time-domain optical coherence tomography (OCT). METHODS: Forty-four eyes with a unilateral DH were allocated to the DH group and 44 fellow eyes to the non-DH group. OCT signal decrease indicating retinal nerve fiber layer thinning was defined as a decrease beyond the upper 95% limit of test-retest variability defined at the 95% confidence level of 44 control patients. The DH and non-DH groups were compared in terms of OCT-derived glaucoma progressions after the first detected DH. In addition, clock-hour locations of the OCT-derived progression were compared with those of DHs. RESULTS: After a median 38.8±10.8 months of follow-up, 72.7% (32 of 44) of eyes in the DH group showed OCT-determined progression on a clock-hour basis, compared with 27.3% (12 of 44) of the fellow eyes in the non-DH group (P<0.0001, Fisher exact test). Eyes in the DH group showed more rapid and greater falls in clock-hour-based progression than fellow eyes in the non-DH group (P<0.0001, log-rank test). Twenty-nine eyes (90.6%) showed progression within 1 clock hour of the location of DH. However, no significant intergroup differences were observed in terms of OCT-determined progression on quadrant or average basis (P>0.05, respectively, Fisher exact test). CONCLUSIONS: Rapid, spatially compatible, localized thinning of the retinal nerve fiber layer after the first detected DH was shown by Stratus OCT.
Department of Ophthalmology, Haeundae Paik Hospital, Korea.
Full article9.4.10 Glaucomas associated with hemorrhage (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders)
6.9.2.2 Posterior (Part of: 6 Clinical examination methods > 6.9 Computerized image analysis > 6.9.2 Optical coherence tomography)
2.14 Optic disc (Part of: 2 Anatomical structures in glaucoma)
6.20 Progression (Part of: 6 Clinical examination methods)