Certified Ophthalmic Assistant Practice Exam

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The color vision test that consists of a series of plates with a gray background and colored circles, crosses, and triangles is the

  1. Hardy-Rand-Ritter

  2. Ishihara

  3. Schirmer

  4. Titmus/Wirt

The correct answer is: Hardy-Rand-Ritter

The correct answer is Hardy-Rand-Ritter. This test is also known as the HRR test. It is used to assess color vision deficiency and consists of plates with a gray background and colored circles, crosses, and triangles. These plates are specifically designed to test for red-green color deficiencies. The Ishihara test is a different type of color vision test that uses plates with numbers or patterns made up of colored dots. Schirmer test is used to measure tear production, and the Titmus/Wirt test is used for binocular vision assessment.

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