Which statement accurately describes the tangent screen test?

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Multiple Choice

Which statement accurately describes the tangent screen test?

Mapping the extent of what the eye can see while the person fixates on a central point is what the tangent screen test does. A small marker is moved on a screen kept at a fixed distance, and the observer notes where the marker remains visible along multiple directions. By tracing these boundaries, you create a field-of-view map that shows usable vision for navigation and daily tasks. This method specifically measures how large the visual field is, not how objects appear in depth, color, or sound. So it’s different from depth perception tests (which check 3D vision), color vision tests (which assess color discrimination), and hearing tests (which measure auditory thresholds).

Mapping the extent of what the eye can see while the person fixates on a central point is what the tangent screen test does. A small marker is moved on a screen kept at a fixed distance, and the observer notes where the marker remains visible along multiple directions. By tracing these boundaries, you create a field-of-view map that shows usable vision for navigation and daily tasks. This method specifically measures how large the visual field is, not how objects appear in depth, color, or sound. So it’s different from depth perception tests (which check 3D vision), color vision tests (which assess color discrimination), and hearing tests (which measure auditory thresholds).

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