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(19)

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Abstract #24455 Published in IGR 11-3

Topographic changes at the optic disc in 33 patients with primary open angle glaucoma

Marjanovic I; Kontic D; Hentova-Sencanic P; Markovic V; Bozic M; Milic N
International Journal of Ophthalmology 2009; 9: 1026-1029

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AIM: To show frequency of progression and progression at the optic disc in primary open angle glaucoma (POAG). METHODS: A total of 33 patients (66 eyes), 14 male and 19 female, aged 14 to 79 with POAG were imaged using the Heidelberg Retina Tomography II (HRT II) three or more times during follow-up periods of 6 years (2000-2006). Disc progression was determined by regression analysis of global and segmental changes in optic disc parameters. Every patient was tested by Octopus G1 once a year. Imaged optic disc parameters with scanning laser tomography were: rim area (ra), cup/disc (C/D), rim volume (rv), mean RNFL thickness (mRNFL). Imaged segments of the optic disc were: global (G), temporal (T), temporal superior (TS), temporal inferior (TI), nasal (N), nasal superior (NS) and nasal inferior (NI). RESULTS: Global frequency of progression according to c/d ratio existed in 34 eyes (51%), but 32 eyes (48%) were without frequency of progression. Progression existed in 12 eyes (18%) in temporal, 7 eyes (10.6%) in temporal superior (TS), 14 eyes (21%) in temporal inferior (TI), 8 eyes (12%) in nasal (N), 7 eyes (10.6%) in nasal superior (NS), and 13 eyes (20%) in nasal inferior (NI) segment. Without progression were 5 eyes (8%). CONCLUSION: Disc progression in our study was mostly in nasal (N) and temporal inferior (TI) segments. Most frequently were stricken temporal inferior (TI) and nasal inferior (NI), but most infrequently nasal superior (NS) segment. Most sensitive parameter was c/d ratio. Segmental scanning is of importance in POAG progression analysis.

Dr. I. Marjanovic, Institute of Eye Diseases Clinical Centre of Serbia, Pasterova 2, Street, 11000 Belgrade, Serbia. ivanmarjanovic007@yahoo.com

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Classification:

6.9.1.1 Confocal Scanning Laser Ophthalmoscopy (Part of: 6 Clinical examination methods > 6.9 Computerized image analysis > 6.9.1 Laser scanning)
2.14 Optic disc (Part of: 2 Anatomical structures in glaucoma)

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