Tangent Screen provide a very accurate method of charting the central and para-central field of vision. They are an invaluable aid in diagnosing pathological conditions. Testing is done at one meter. Manufactured using the finest black felt available to insure non-reflectivity. All markings are stitched in semi-visible black thread showing concentric circles, radial lines and blind spots. These markings insure ease of testing, scoring and transcribing the mapped fields for visual field analysis. A white Fixation button is attached. These roll-up screens include mounting hardware and laminated score card. Available in 15° configuration which shows 24 Radians for maximum accuracy or 22.5° version which shows 16 radians. Tangent Screen measure 43″ x 43″ (1.1 m x 1.1 m).
Complete Sets include Roll-up Screen with choice of screen with 15° or 22.5° radians, 18 inch Black wand, black scoring pins, full set of test objects and laminated score sheet.