Delayed Functional Loss in Glaucoma LII Edward Jackson Memorial Lecture

This study is a systematic exploration of why some patients with glaucoma continue to lose visual field long after therapeutic normalization of their increased intraocular pressures. Three cases of glaucoma are described that had increased intraocular pressures and good initial visual fields. The fo...

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Bibliographic Details
Published in:American journal of ophthalmology 1996-05, Vol.121 (5), p.473-483
Main Author: BRUBAKER, RICHARD F.
Format: Article
Language:English
Subjects:
Adult
Apoptosis
Awards and Prizes
Biological and medical sciences
Cell Death
Female
Glaucoma - pathology
Glaucoma - physiopathology
Glaucoma and intraocular pressure
Humans
Intraocular Pressure
Male
Medical sciences
Middle Aged
Ophthalmology
Retinal Ganglion Cells - pathology
Societies, Medical
Vision Disorders - physiopathology
Visual Fields - physiology
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Summary:This study is a systematic exploration of why some patients with glaucoma continue to lose visual field long after therapeutic normalization of their increased intraocular pressures. Three cases of glaucoma are described that had increased intraocular pressures and good initial visual fields. The following four hypotheses are offered to explain delayed functional loss in these patients: (1) A process independent of intraocular pressure is killing ganglion cells. (2) Unmeasured increases of pressure are killing ganglion cells. (3) The ganglion cells have a genetically determined hypersensitivity to intraocular pressure. (4) The ganglion cells have been rendered hypersensitive to intraocular pressure by irreversible damaging effects of previously increased intraocular pressures. The current state of knowledge does not permit the elimination of any of the four hypotheses. An additional hypothesis is that the final stage of ganglion cell death is mediated by apoptosis. If so, a potential new treatment for glaucoma would be to inhibit the apoptotic pathway.
ISSN:0002-9394
1879-1891
DOI:10.1016/S0002-9394(14)75421-2