Practice Quiz

Ophthalmic Assistant

Category - Visual Assessment

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Allen cards can be used to measure the visual acuity of
  1. the elderly.
  2. teenagers.
  3. patients with astigmatism.
  4. preschool-age children.
Explanation
Answer: D - preschool-age children.

Allen cards can be used to measure the visual acuity of preschool-age children. Allen cards display simple pictures that a young child can recognize. The cards are designed to be looked at from 30 feet away.
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