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Concept and definition of longterm visual field changes in low-tension glaucoma Hidenobu Tanihara 1 , Etsuo Chihara 1 1Dept. of Ophthalmol, Fac of Med, Kyoto Univ pp.803-807
Published Date 1986/7/15
DOI https://doi.org/10.11477/mf.1410209801
  • Abstract
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We evaluated the course of visual field defects in 32 eyes with low-tension glaucoma. The follow-up period averaged 4.6 years. The visual field defects were sta-tionary in the majority of cases. Only 7 eyes showed progression of field loss by one stage after the classifi-cation by Kosaki. Three eyes manifested visual field defects untypical for glaucoma.

The observed differences in the characteristics of visual field between low-tension glaucoma and overt, hypertensive glaucoma may be attributed to inappropri-ate criteria for low-tension glaucoma. The so-called low-tension glaucoma include 3 different entities : 1 ) true low-tension glaucoma in which the visual, field deteriorates in spite of normal intraocular pressure level. 2) Hidden or silent glaucoma due to intermittent or previous elevation of intraocular pressure. 3 ) Pseudoglaucoma, including ischemic optic neuropathy. We propose that ischemic optic neuropathy be separ-ated from glaucoma. Patients with abnormal outflow facility are to be included in another category as they have episodes of elevated intraocular pressure. A rigid criterion is essential for the proper interpretation and clinical management of low-tension glaucoma.

Rinsho Ganka (Jpn J Clin Ophthalmol) 40(7) : 803-807, 1986


Copyright © 1986, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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