| Reproducibility Among Residents in Evaluating Cup-disc Ratio Using Computer-aided Planimetry. |
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Sul Gee Lee, Young Il Kim, Joo Hwa Lee |
1Department of Ophthalmology, Busan Paik Hospital, Inje University College of Medicine, Korea. ophthil@yahoo.co.kr
2Department of Ophthalmology, Sanggye Paik Hospital, Inje University College of Medicine, Korea. |
| 전공의들 간의 Computer-aided Planimetry를 이용한 시신경유두함몰비 측정의 재현성 비교 |
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이슬기 ( Lee Seul Gi ) , 김영일 ( Kim Yeong Il ) , 이주화 ( Lee Ju Hwa ) |
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| Abstract |
PURPOSE
To investigate the intra-observer agreement and inter-observer agreement among observers assessing optic disc cup-disc ratio of glaucoma patients. METHODS: Fifty stereoscopic optic disc photographs of patients with glaucoma were digitized and five ophthalmology residents drew optic disc and cup margin in a masked random fashion. It was performed twice on same photographs weekly under monoscopic and stereoscopic conditions. The agreement was estimated by Pearson correlation coefficient r. RESULTS: Intra-observer agreement for estimating linear cup-disc ratio (LCDR) under monoscopic (0.84) and stereoscopic conditions (0.86) were high and inter-observer agreement was also high under monoscopic (0.81) and stereoscopic conditions (0.83) showing more perfect agreement under stereoscopic condition. The observers estimated smaller cup-disc ratio when evaluating under stereoscopic condition than under monoscopic condition. CONCLUSIONS: Evaluating optic disc stereoscopically with computer-aided planimetry can be clinically useful when managing patients with glaucoma since it has a high reproducibility. |
| Key Words:
Computer-aided planimetry;Cup-disc ratio;Inter-observer agreement Intra-observer agreement;Reproducibility |
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