Tangent Screen

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Tangent Screens provide a way to chart the central and Para-central field of vision for diagnosing pathological conditions.
Testing can be conducted at 3' to 6' (1 m to 2 m).
Markings are stitched in semi-visible black thread showing concentric circles, radial lines, and blind spots. Markings ensure ease of testing, scoring, and transcribing the mapped fields for visual field analysis.
A white fixation button is attached.
1 m 15 deg (shown) . . . . . . . . . . . . .931000
1 m 22.5 deg . . . . . . . . . . . . . . . . . .930000