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Visual loss in NAION may be predicted from fellow eye
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A pattern of visual loss may be predicted from the fellow eye in patients with bilateral sequential nonarteritic anterior optic neuropathy, according to a study.
In a retrospective review, visual loss was examined in 86 patients with nonarteritic anterior ischemic optic neuropathy (NAION). Outcome data were collected on visual acuity, visual field, color vision and relative afferent pupillary defect.
Between fellow eyes, the difference in logMAR visual acuity was not statistically significant. Total and pattern visual field deviations were significantly less between fellow eyes of the same patient, as compared with the first eye of one patient and the second unrelated eye of another patient (both P < .001).
“This information can be useful for counseling patients after a first episode of NAION, although not much comfort to those at the severe end of the spectrum of visual loss in this condition,” the study authors said.
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