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Abstract #58890 Published in IGR 16-3

Changes in retinal nerve fiber layer thickness after optic disc hemorrhage in glaucomatous eyes

Hwang YH; Kim YY; Kim HK; Sohn YH
Journal of Glaucoma 2014; 23: 547-552

See also comment(s) by Gustavo de Moraes •

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PURPOSE: The aim of this study was to investigate the changes in longitudinal retinal nerve fiber layer thickness (RNFLT) as determined by spectral-domain optical coherence tomography (OCT) after optic disc hemorrhage (DH) in glaucomatous eyes. METHODS: A total of 65 eyes with unilateral DH and 65 contralateral eyes without DH were subjected to RNFLT measurements by using OCT at the time of DH detection and at 1 year (12±2 mo) and 2 years (24±2 mo) later. For the definition of event-based significant RNFLT changes (a change beyond the upper limit of the 95% confidence interval of test-retest variability), 50 eyes with stable glaucoma without DH that had undergone OCT examinations 3 times with a 1-year interval were also enrolled. Clock-hour sector RNFLT in the eyes with DH and clock-hour sector RNFLT at equivalent locations in the contralateral eyes without DH were analyzed to assess localized and spatially compatible RNFLT changes associated with DH. RESULTS: Of the eyes with DH, 38.5% showed decrease in RNFLT and 6.2% showed increase in RNFLT 1 year after DH detection, whereas 58.5% showed decrease in RNFLT and no eye showed increase in RNFLT 2 years after DH detection. Significant decreases in RNFLT in the eyes with DH were associated with the presence of recurrent DH and greater baseline RNFLT (P<0.05). Of the contralateral eyes without DH, 4.6% and 15.4% showed decrease in RNFLT 1 and 2 years after DH detection, respectively. CONCLUSIONS: In the glaucomatous eyes, DH was associated with progressive decrease in RNFLT as determined by OCT, especially in the eyes with recurrent DH and greater baseline RNFLT.

*Department of Ophthalmology, Kim's Eye Hospital, Myung-Gok Eye Research Institute, Konyang University †Department of Ophthalmology, Korea University College of Medicine, Seoul, Korea.

Full article

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Classification:

9.4.10 Glaucomas associated with hemorrhage (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders)
2.13 Retina and retinal nerve fibre layer (Part of: 2 Anatomical structures in glaucoma)
6.9.2.2 Posterior (Part of: 6 Clinical examination methods > 6.9 Computerized image analysis > 6.9.2 Optical coherence tomography)

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