How do prescription glasses work?

Lots of people wear prescription glasses to help them see. An eye doctor helps to find the right prescription so that our eyeballs focus better on things that would otherwise look like a blurry mess. But how do glasses actually work? We asked eye doctor Stacey Pineles to help us find the answer. Got a question in your sights? Send it to us at BrainsOn.org/contact, and we’ll focus on finding the answer! See omnystudio.com/listener for privacy information.