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Ophthalmic Assistant

Category - Lensometry and Spectacle Skills

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How might transposition of an eyeglass prescription be used?

To find the refractive index
To find the focal length of a lens
To determine a patient’s refraction
To convert a minus cylinder power to a plus cylinder power

Explanation

Answer: D - To convert a minus cylinder power to a plus cylinder power

Transposition of an eyeglass prescription might be used to convert a minus cylinder power to a plus cylinder power. Transposition may also be used to convert a plus cylinder power to a minus cylinder power.

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Ophthalmic Assistant

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Ophthalmic Assistant

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