multiple-focus lens

What you need to know about IOLs used for cataract surgery

Severe cases of cataracts typically require the replacement of the natural lens of the eye.  This is done by using intraocular lens or IOLs. The IOLs carry out the normal function of the eye’s natural lens, by focusing light that enters the eye through the cornea and pupil, onto the retina. But what else do …

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