Question

why do we use spectacles to correct eye defects

Answer 1

Answer:

Glasses or contact lenses work so well because they can correct refractive problems. In other words, they bend the light rays in a way that lets you see more clearly. Laser surgery also can correct some vision problems, but it's not allowed for kids because they're still growing.

Answer 2

HEYA MATE HERE U GO

the process of adjusting focal length is called accommodation this process has to be done by eye itself sometimes the eye may gradually lose its power of accommodation in such condition te person cannot be able to see the object clearly and can fortably. in this situation we have to use lenses in spectacles to correct defects of vision.

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