Having participated in the Optic Neuritis Treatment Trial (ONTT) as a coinvestigator, I was interested to read the recent report by Keltner et al.1 The authors sought to define the baseline visual field characteristics of the 448 patients with acute optic neuritis who were entered into the ONTT, based on the results of automated static perimetry obtained with the Humphrey Visual Field Analyzer. Abnormal visual fields were classified as either diffuse, ie, no identifiable pattern of field loss, or localized. Nearly half (48.2%) of the affected eyes were judged to have diffuse loss. The remainder of affected eyes were found to have a variety of localized patterns, including altitudinal, arcuate, and cecocentral defects. The most surprising finding was that a cecocentral scotoma, universally considered to be the hallmark pattern
Pollock SC. Visual Fields in Optic Neuritis. Arch Ophthalmol. 1993;111(10):1315–1316. doi:10.1001/archopht.1993.01090100021008
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