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Contributory factors for glaucomatous disc cupping :3. Direction of enlargement of cupping Toshiyuki Iga 1 , Norio Katsumori 1 , Kuniyoshi Mizokami 1 1Dept. of Ophthalmol, Sch of Med, Univ of Kobe pp.657-659
Published Date 1988/6/15
DOI https://doi.org/10.11477/mf.1410210413
  • Abstract
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We evaluated the optic disc in 107 eyes with glaucoma or allied diseases : primary open angle glaucoma (POAG) 58 eyes, low tension glaucoma (LTG) 24, secondary glaucoma (SG) 9, and pseudoglaucoma (PG) 16.

We divided the optic disc into 9 areas in accor-dance to the distributional pattern of retinal nerve fiber bundles.

In all the cases of LTG, the most significant enlargement of cupping was located in the upperand lower temporal disc areas. In 81% of eyes with PG, the cupping enlarged in the disc area corre-sponding to the arcuate nerve fiber. Enlargement of cupping showed no definite pattern in eyes with SG.The enlargement developed in the arcuate nerve fiber disc area in 93% of eyes with POAG, and toward the nasal disc area in the other 7%. The findings seemed to imply the vulnerability of the optic disc in LTG. The supposed vulnerability seemed to be of lesser order in POAG and to a negligible degree in SG.

Rinsho Ganka (Jpn J Clin Ophthalmol) 42(6) : 657-659, 1988


Copyright © 1988, Igaku-Shoin Ltd. All rights reserved.

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