Invited Symposium: Glaucoma: Diagnosis and Therapy
Budde, WM (Dept. Ophthalmology, Friedrich-Alexander University Erlangen-Nürnberg, Germany)
Nemeth, J (1st Dept. Ophthalmology, Semmelweis Medical University, Budapest, Hungary)
Gründler, AE (Dept. Ophthalmology, Friedrich-Alexander University Erlangen-Nürnberg, Germany)
Purpose. To evaluate whether the position of the central retinal vessel trunk exit on the lamina cribrosa spatially correlates with the location of parapapillary atrophy in glaucoma. Methods. Color stereo optic disc photographs of 79 patients with primary or secondary open-angle glaucoma and 53 normal subjects were morphometrically evaluated. We determined the position of the central retinal vessel trunk exit on the lamina cribrosa surface and measured the area of parapapillary atrophy in four 90° quadrants. Results. After correction for normal values, the beta zone area of parapapillary atrophy in the glaucoma eyes was significantly larger, when measured in the disc quadrant most distant to the central retinal vessel trunk exit than as if measured in the quadrant containing the vessel trunk exit. Conclusions. Position of the central retinal vessel trunk exit on the lamina cribrosa influences the location of parapapillary atrophy in glaucoma. The longer is the distance to the central retinal vessel trunk exit, the more enlarged is parapapillary atrophy and the smaller is the neuroretinal rim.
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|Jonas, JB; Budde, WM; Nemeth, J; Gründler, AE; (1998). Location of Central Retinal Vessel Trunk Exit and Parapapillary Atrophy. Presented at INABIS '98 - 5th Internet World Congress on Biomedical Sciences at McMaster University, Canada, Dec 7-16th. Invited Symposium. Available at URL http://www.mcmaster.ca/inabis98/nemeth/jonas0257/index.html|
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