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Deceptive discs ..!
Author(s) -
Pawson Pete
Publication year - 1996
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1046/j.1475-1313.1996.96849933.x
Subject(s) - glaucoma , optic disc , visual field , intraocular pressure , optometry , ophthalmology , interpretation (philosophy) , medicine , psychology , computer science , programming language
Discrimination between normal and glaucomatous optic discs is notoriously difficult, even for ophthalmologists specialising in glaucoma. This poster will present optic disc photographs, together with their corresponding visual fields, in order to highlight this difficulty. The various possible disc, field and intraocular pressure combinations will be explored, and potential explanations for non‐correlation between these variables will be offered. Emphasis will again be placed upon: 1. The value of visual field examinations when screening for glaucoma (Tuck and Crick, 1993). 2. The relevance of disc size in the interpretation of C : D ratios (Jonas and Dichtl, 1995). 3. The fact that raised intraocular pressure is a risk factor for glaucoma, rather than a diagnostic criterion (Sommer, 1989).