Which chart is used to test color vision?

Which chart is used to test color vision?

• A. Snellen chart
• B. Jaeger chart
• C. Ishihara test
• D. Tumbling-E

Answer: (C)

Color vision testing focuses on how people perceive colors, not on how sharply they can see details. The Ishihara test uses plates filled with colored dots arranged to form a number or shape that someone with normal color vision can identify. If a person has a color vision deficiency, especially common red-green type, the figure may be indistinguishable or appear different, signaling the deficiency. This test is quick, easy to administer, and specifically designed to detect color discrimination problems. Other charts mentioned measure acuity—how well you see details at distance or near—not color perception. Snellen tests distance vision, Jaeger checks near vision, and Tumbling-E is a literacy-free distance acuity test, none of which assess color discrimination.

Color vision testing focuses on how people perceive colors, not on how sharply they can see details. The Ishihara test uses plates filled with colored dots arranged to form a number or shape that someone with normal color vision can identify. If a person has a color vision deficiency, especially common red-green type, the figure may be indistinguishable or appear different, signaling the deficiency. This test is quick, easy to administer, and specifically designed to detect color discrimination problems. Other charts mentioned measure acuity—how well you see details at distance or near—not color perception. Snellen tests distance vision, Jaeger checks near vision, and Tumbling-E is a literacy-free distance acuity test, none of which assess color discrimination.