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Abstract #8407 Published in IGR 5-1
Increased disc size in glaucomatous eyes vs normal eyes in the Reykjavik eye study
Wang L; Damji KF; Munger R; Jonasson F; Arnarsson A; Sasaki H; Sasaki KAmerican Journal of Ophthalmology 2003; 135: 226-228
PURPOSE: To evaluate the use of disc diameter as an indicator in the identification of glaucomatous optic neuropathy. METHODS: The authors evaluated all available stereofundus photographs for 1040 right eyes obtained in the Reykjavik Eye Study. Horizontal and vertical disc diameters were determined in a masked manner by a glaucoma specialist. All disc diameters were corrected for refractive error. RESULTS: There were significant differences (p < 0.05) between the corrected vertical disc diameters of normal subjects (0.189 ± 0.018 inches) and those suspected of having glaucoma (0.202 ± 0.020 inches) as well as between the normal and the glaucoma groups (0.206 ± 0.029 inches). The corrected horizontal measurement showed the same pattern. CONCLUSIONS: In the Reykjavik Eye Study, optic disc meeting structural criteria for glaucoma are significantly larger than normal nerves.
Dr. L. Wang, University of Ottawa Eye Institute, Ottawa, Ontario, Canada
Classification:
2.14 Optic disc (Part of: 2 Anatomical structures in glaucoma)
6.8.2 Posterior segment (Part of: 6 Clinical examination methods > 6.8 Photography)
