Tangent screen perimetry.
figure
posted on 2017-03-29, 17:43 authored by Molly L. Fuller, César A. Briceño, Christine C. Nelson, Elizabeth A. BradleyA. Patient seated one meter from an eye level tangent screen with the technician holding the target wand against the pattern of isopters and radians. B. Test pattern for the superior visual field shown above the central fixation point.
