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Visual function in patients with optic nerve pallor (optic atrophy)
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Visual function in patients with optic nerve pallor (optic atrophy)
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Journal Article
Visual function in patients with optic nerve pallor (optic atrophy)
2003
Overview
This cross-sectional study assessed the relationship between the degree of optic nerve pallor (optic atrophy) and visual function. Using a set of \"gold standard\" stereoscopic slides, the severity of optic atrophy for 270 eyes, each having sustained a bout of optic neuropathy, was graded. Good visual acuity was found in 55/86 (64.0%) mild, 54/119 (45.4%) moderate, and 21/65 (32.3%) marked optic atrophy eyes. Good visual field was found in 6/28 (21.4%) mild, 4/43 (9.3%) moderate, and 2/28 (7.1%) marked optic atrophy eyes. Good color vision was found in 31/46 (67.4%) mild, 12/62 (19.4%) moderate, and 7/31 (22.6%) marked optic atrophy eyes. A significant rank correlation was observed between optic atrophy and visual acuity (P < 0.001; rs = 0.356), visual field (P < 0.001; rs = -0.398), and color vision (P < 0.001; rs = -0.492). As the graded severity of optic atrophy increases, the proportion of eyes with good visual function decreases. Visual field, rather than visual acuity or color vision, appears to be a better indicator of the severity of visual loss, when optic atrophy is present.
Publisher
Slack,Elsevier Limited,National Medical Association
