Biology, asked by Vineetm6545, 1 year ago

Principle beyond prescribing lenses for refractive error

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Answered by afnan1141
2

Correction: if there is no pre-existing eye problem or refractive error, patients may manage well with over-the-counter glasses. ... However, if there is a pre-existing refractive error, prescription glasses are generally required; these may be bifocals or trifocals. Contact lenses may also be used.

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