Effect of test field size on the results of automated perimetry in normal subjects and patients with optic neuritis.
The mean sensitivities of the same 8 central test points were compared in two different programs of an automated Octopus perimeter in normal subjects and in patients recovered from optic neuritis (visual acuity 0.8 or better). The programs differed in terms of the size of the stimulated visual field. One program tested the central 30 degrees and the other, central 8.4-degree visual field. It was found that the mean sensitivity tended to become higher when stimulating small field size in both normal persons and patients with optic nauritis.
Department of Ophthalmology, School of Medicine, Chiba University.
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Fujimoto
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E
Adachi-Usami
D000293:Adolescent; D000328:Adult; D006801:Humans; D009902:Optic Neuritis / Q000175:diagnosis*; D011379:Prognosis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012984:Software; D058609:Visual Field Tests; D014794:Visual Fields