| Fluorographic Findings of Normal Optic Disc. |
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Ki Tae Son, Won Shik Youn |
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Department of Ophthalmology, College of Medicine, Seoul National University, Seoul, Korea. |
| 정상 안저혈관의 관찰 ( 제1보 ) - 형광촬영법에 의한 정상 시신경 유두의 관찰 - |
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손기태 , 윤원식 ( Ki Tae Son , Won Shik Youn ) |
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| Abstract |
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One hundred normal optic discs were analysed by fluorographic fundus pictures. Horizontal diameter of optic disc was set as 10. The following results were obtained. 1) The vertical diameter of optic disc was larger than the horizontal one. (10.77 : 10). 2) The ratio of diameters of cenitral retinal vein(CRV) was 1 : 1.51 before and 1 : 1.47 after fluorescein injection. 3) The central retinal artery(CRA) located nasal to the CRV in most cases. 4) In nearly half of cases, physiologic cups located at the nasal portion of optic discs. 5) The average size of physologic cup was 2.90. 6) The cilioretinal artery was detected in 58% of cases in which one cilioretinal artery was found in 42%, two was found in 16%. 7) The CRA made branchings more than retinal veins (7.74 : 5.48) and total sum of diameters of retinal artery was larger than that of retinal vein at the disc margin. |
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