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Abstract #8711 Published in IGR 5-1
Characteristics of visual field progression in patients with normal-tension glaucoma with optic disc hemorrhages
Kono Y; Sugiyama K; Ishida K; Yamamoto T; Kitazawa YAmerican Journal of Ophthalmology 2003; 135: 499-503
PURPOSE: To study the characteristics of visual field progression in patients with normal-tension glaucoma (NTG) with optic disc hemorrhages. DESIGN: Observational study. METHODS: Fifty-eight eyes of 58 untreated patients with NTG who had at least five reliable visual fields of the Humphrey Field Analyzer (central 30-2) within the follow-up period of more than 24 months were enrolled. Of these, 27 eyes had optic disc hemorrhages in their clinical courses. Pointwise linear regression analysis was done using total deviation values of the fields at each of 74 test locations in each patient. Progression was defined as the points of negative slopes with p < 0.01. A whole visual field was concentrically divided into three clusters: the areas within 10°, 10-20°, and 20-30° Percentages of the progressed points of the three clusters and a whole field were compared between the groups with and without optic disc hemorrhages. RESULTS: No significant differences were found in patients' backgrounds, including initial mean deviation values, follow-up periods, and the number of visual field examinations between the 27 patients with optic disc hemorrhages and the 31 without. The group with optic disc hemorrhages showed significantly higher percentages of progressed points within the 10° area compared with the group without optic disc hemorrhages (mean ± SD: 13.1 ± 13.7%; 5.1 ± 8.5%, respectively; p = 0.0086, Student's t test), whereas no significant differences were found in the other two clusters or in a whole field. CONCLUSIONS: Patients with NTG with optic disc hemorrhages tend to show visual field progression in areas within 10°.
Dr. Y. Kono, Department of Ophthalmology, Gifu University School of Medicine, Gifu, Japan. ykono-gif@umin.ac.jp
Classification:
9.2.4 Normal pressure glaucoma (Part of: 9 Clinical forms of glaucomas > 9.2 Primary open angle glaucomas)
