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        스펙트럼 영역 빛간섭단층촬영을 이용한 시신경유두 모양에 따른 시신경 유두주위위축 분석

        김근영,이유경,문정일,박명희.Geun Yeong Kim. MD. You Kyung Lee. MD. Jung Il Moon. MD. PhD. Myoung Hee Park. MD. PhD 대한안과학회 2013 대한안과학회지 Vol.54 No.11

        Purpose: To analyze the structural changes in the β-zone of peripapillary atrophy (PPA-β) using cross-sectional image of the optic disc head from spectral-domain optical coherence tomography (SD-OCT) according to the optic disc shape. Methods: One hundred thirty-seven eyes in 137 patients with glaucoma having PPA-β and 31 normal eyes (control group) were evaluated retrospectively. Cross-sectional images of the optic disc were taken using the Cirrus HD-OCT. We classified optic disc patterns into normal, focal, myopic, generalized enlargement and senile sclerotic appearance types and analyzed the shape of Bruch’s membrane (BM), composition of retinal layer and retinal slope according to the optic disc shape. Results: Among the 137 eyes with glaucoma, 54 eyes were focal disc type, 34 eyes were myopic disc type, 28 eyes were generalized enlargement disc type and 21 eyes were senile sclerotic disc type. The myopic disc group showed a noticeable difference compared to the other groups in terms of a higher percentage of BM defect type, the lowest retinal slope (70.6 ± 12.0°) and the earlier termination of retinal layers. The generalized enlargement disc group showed the highest percentage of curved BM type. Retinal slope angle increased with age and decreased with axial length. Conclusions: In the β-zone of peripapillary atrophy, there were several differences in the shape of Bruch’s membrane, composition of retinal layers and the retinal slope according to the optic disc shape. J Korean Ophthalmol Soc 2013;54(11):1748-1756

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