| Regional Comparison of Heidelberg Retinal Tomographic Measurements of Normal and Early Glaucomatous Optic Nerve Head. |
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Hak Sung Chung, In Sik Lee, Young Ghee Lee, Young Jae Hong |
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Department of Ophthalmology and The Institute of Vision Research, Yonsei University, College of Medicine, Seoul, Korea. |
| 정상안과 초기 녹내장안에서 HRT 를 이용한 시신경유두의 부위별 국소형태의 분석 |
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정학성(Hak Sung Chung),이인식(In Sik Lee),이영기(Young Ghee Lee),홍영재(Young Jae Hong) |
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| Abstract |
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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. |
| Key Words:
Neuroretinal rim;Optic nerve head;Regional preference;Retina tomograph |
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