J Korean Ophthalmol Soc.
1996 Sep;37(9):1499-1504.
Regional Comparison of Heidelberg Retinal Tomographic Measurements of Normal and Early Glaucomatous Optic Nerve Head
- Affiliations
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- 1Department of Ophthalmology and The Institute of Vision Research, Yonsei University, College of Medicine, Seoul, Korea.
Abstract
- To estimate normal values for optic nerve head parameters in Korean adults and establish pattern of early glaucomatous neuroretinal rim loss, we measured the mean value of each parameter according to 6 predefined sectors with Heidelberg Retina Tomograph. 500 eyes of normal 500 individuals and 30 eyes of early primary open angle glaucoma patients whose mean defect was less than -5dB in automated threshold perimetry(Humphrey programs C30-2) were enrolled in this study. Comparing with normal subjects, the early glaucoma group had significant difference in 8 parameters(p<0.05). The neuroretinal rim area in normal eyes were significantly largest in the nasal inferior and nasal sectors, decreased in the order of nasal superior, temporal inferior, temporal, nasal inferior, and nasal sectors(p<0.05). We established normal values of optic nerve head parameters in Korean adults and these results suggest the regional preference of optic nerve head damage in early glaucoma.
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