Practice Quiz

Ophthalmic Assistant

Category - Ocular Motility and Visual Fields

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The Worth four-dot test can be used to detect
  1. anomalous retinal correspondence.
  2. amblyopia.
  3. heterophoria.
  4. A and C.
Explanation
Answer: A - anomalous retinal correspondence.

The Worth four-dot test can be used to detect anomalous retinal correspondence. The patient wears red-and-green glasses and is asked to note the number and color of lights shown by the examiner. The test is typically carried out with a flashlight that has four discrete lights-two green and two red.
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