Science, asked by lenvmgqzyhxkplfuig, 2 months ago

what are bifocal spectacles​

Answers

Answered by nutanshahi782
2

Answer:

Bifocals are eyeglasses with two distinct optical powers. Bifocals are commonly prescribed to people with presbyopia who also require a correction for myopia, hyperopia, and/or astigmatism

Explanation:

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