Which chart is used to measure visual acuity at a distance?

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Multiple Choice

Which chart is used to measure visual acuity at a distance?

Explanation:
Visual acuity at a distance is evaluated with the Snellen chart because it uses lines of letters in progressively smaller sizes at a fixed testing distance, and the smallest line a person can read accurately determines their distance acuity (for example, 20/20). Jaeger charts assess near vision at close reading distance, Farnsworth Lantern Test checks color vision using colored lights, and pseudoisochromatic plates test color vision with color patterns—none measure distance acuity.

Visual acuity at a distance is evaluated with the Snellen chart because it uses lines of letters in progressively smaller sizes at a fixed testing distance, and the smallest line a person can read accurately determines their distance acuity (for example, 20/20). Jaeger charts assess near vision at close reading distance, Farnsworth Lantern Test checks color vision using colored lights, and pseudoisochromatic plates test color vision with color patterns—none measure distance acuity.

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