FDA Approved Contact Lenses That Improve Vision Overnight

You wear the contact lenses at night while you sleep, take them out in the morning, and see fine without them all day. They're called Paragon CRT contact lenses (short for Corneal Refractive Therapy), and they're the first ones of their type to be FDA-approved for the overnight indication. Other contact lenses that improve your vision while you're not wearing them are not approved for overnight wear. How do they work? They gently reshape your eye while you sleep to correct nearsightedness. The effect is temporary, so you need to keep wearing the lenses at night.

(AP Biscom)