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Abstract #24743 Published in IGR 11-4
Ability of the Heidelberg retina tomograph to detect early glaucomatous visual field loss in primary open angle glaucoma
Li J; Chen X-MInternational Journal of Ophthalmology 2009; 9: 1690-1692
AIM: To select the best optic disc parameters of Heidelberg retina tomogragh (HRT) for the early diagnosis of glaucoma. METHODS: The optic disc parameters - cup/disk area ratio, rim area, rim volume, cup volume, cup shape measure, height variation contour, and mean retinal nerve fiber layer thickness measured by HRT (version 2.01) were analyzed, and a stepwise discriminant analysis between 23 normal subjects and 23 patients with early glaucomatous visual field loss was performed to determine which parameters were the most informative in detecting individuals with early glaucomatous visual field loss. RESULTS: It showed neuroretinal rim area and cup/rim area ratio of all the optic disc parameters were very important in detecting early glaucoma and had a high sensitivity and specificity of 87% and 96%. CONCLUSION: In all of the optic disc parameters of HRT, rim area and cup/disk area ratio seem to be the best discrimination factors for detecting glaucoma. LA: Chinese
J. Li. Department of Ophthalmology, Sichuan Provincial People's Hospital, Chengdu 610072, Sichuan Province, China. lijing0070@163.com
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)
1.6 Prevention and screening (Part of: 1 General aspects)