Ophthalmic Assistant

Category - Lensometry and Spectacle Skills

A patient suffering from a strabismus or a crossed eye may be prescribed which of the following?
  1. Convex lenses
  2. Concave lenses
  3. Prism lenses
  4. Reading glasses
Explanation
Answer: C - Prism lenses

A patient suffering from a strabismus or a crossed eye may be prescribed a prism lens. They will appear as thicker and thinner edges on the lenses. They may be ground into the shape of the lens or repositioned in the optical center to induce prism.
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