| Glaucoma Discrimination by Combined Use of Frequency Doubling Technology and Heidelberg Retina Tomography II. |
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Ho Ra, Chan Kee Park |
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Department of Ophthalmology, Kangnam St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. ckpark@catholic.ac.kr |
| 주파수 배가 시야검사계와 하이델베르그 시신경 유두 분석기 II의 복합분석을 이용한 녹내장 판별 |
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나호,박찬기 |
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Department of Ophthalmology, Kangnam St. Mary`s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea |
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Correspondence:
Ho Ra, M.D. |
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| Abstract |
PURPOSE
This study investigated whether the combined use of Frequency Doubling Technology and Heidelberg Retina Tomography II increases the usefulness of glaucoma detection. METHODS: The study subjects were, 59 patients with POAG and 34 normal persons were selected. The authors defined a total of six discriminative criteria: F1, in which the conventional analysis of FDT was used; F2, in which the FDT scoring system was used; F3, in which the Moorfield classification of HRT was used; F4, in which the new HRT discrimination function `Z' was used; F5, in which F1 and F3 were combined, and F6, in which F2 and F4 were combined; The usefulness of each criterion was investigated. RESULTS: The sensitivity, specificity, and area under the ROC curve of the six discriminative criteria were: 86.4%, 58.8%, and 0.740 in F1, 4.5%, 80.0% (cutoff: 12.50), and 0.882 in F2, 79.7%, 61.8%, and 0.679 in F3, 77.6%, 74.3% (cutoff: 0), and 0.857 in F4, 77.6%, 71.4% (cutoff: 1.0805), and 0.767 in F5, and 86.2%, 91.4% (cutoff: 0.495) and 0.931 in F6. CONCLUSIONS: Combined use of functional (FDT) and morphological (HRT) aspects, which are early parameters of glaucoma damage, gave more useful results than a single analysis of each. Thererfore, the combined use will help the early detection of glaucoma. |
| Key Words:
Frequency doubling technology;Heidelberg retina tomography |
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