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October 1993

Visual Fields in Optic Neuritis-Reply

Author Affiliations

Davis, Calif
Tampa, Fla

Arch Ophthalmol. 1993;111(10):1316-1317. doi:10.1001/archopht.1993.01090100021009

In reply  Since the manuscript "Baseline Visual Field Profile of Optic Neuritis: The Experience of the Optic Neuritis Treatment Trial" was reviewed and critiqued by the executive committee and all the principal investigators of the ONTT, we were surprised by the comments of Dr Pollock regarding our article.1 We believe Dr Pollock has misunderstood our data.Our analysis was based on testing the central 30° using the Humphrey Visual Field Analyzer. The majority of patients had some decrease in central acuity or foveal threshold, indicating a central defect. Some of the patients classified as having severe diffuse loss had a peripheral field present on kinetic visual field testing using the Goldmann perimeter. This may account for some of the "apparent" discrepancies between our findings and those in previous studies. Since most ophthalmologists perform only automated static perimetry of the central 30° as their standard procedure, we believe that our

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