| Optic Nerve Head Analysis Obtained by Optical Coherence Tomography for the Diagnosis of Glaucoma in Koreans. |
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Jae Ok Sim, Chan Kee Park |
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Department of Ophthalmology, College of Medicine, Catholic University of Korea, Seoul, Korea. ckpark@catholic.ac.kr |
| 한국인 녹내장 환자의 진단을 위한 빛간섭 단층촬영을 이용한 시신경유두 분석 |
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심재옥 ( Jae Ok Sim ) , 박찬기 ( Chan Kee Park ) |
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| Abstract |
PURPOSE
To find the optimal parameter of the optic nerve head (ONH) analysis using Optical Coherence Tomography (OCT) and to form a diagnostic classification for the detection of glaucoma in Koreans. METHODS: The subjects of this study were 799 eyes of 400 patients at Kangnam St. Mary's Hospital from June 2003 to March 2004. Complete ophthalmic examinations containing the visual field test and OCT ONH analysis (StratusOCT, software ver. 3.0, Carl Zeiss Meditec, Inc, Dublin, CA, USA) were performed and the results were analyzed in the normal, glaucoma suspect and glaucoma groups. RESULTS: In the 799 eyes, there were 378 glaucomatous eyes. There was a statistically significant difference between glaucoma and non-glaucoma patients in all parameters of OCT ONH analysis except for the disc area. The horizontal integrated rim area (HIRA) was most significantly correlated with the visual field indices (MD and CPSD) and was the most useful parameter in glaucoma detection. Based on age and HIRA, the new discriminant formula = -1.858 - 0.028 x Age + 2.518 x HIRA was obtained and its accuracy, sensitivity and specificity were 72.8%, 71.5% and 73.8% respectively. CONCLUSIONS: HIRA was the most useful parameter in the detection of glaucoma. The new discriminant formula from OCT ONH analysis is expected to be useful in the diagnosis and follow-up of glaucoma in Koreans. |
| Key Words:
Glaucoma;Optic nerve head analysis;Optical coherence tomography |
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