COULD CONTACT LENSES CURE YOUR SIGHT WHILE YOU SLEEP? The Daily Mail
"Don't sleep in your contact lenses" was always the motto but Extended or Continuous wear contact lenses made from the latest materials are designed for precisely that - to sleep in.
i-GO Overnight Vision Correction (OVC) contact lenses go one step further - you only wear them at night, leaving you free of lenses during the day. They do more than the conventional "off the shelf" lenses - they are a "corrective contact lens" custom-designed to reshape your eyes and improve your vision while you sleep!
Designed for shortsighted people, overnight vision correction or ortho k lenses have many advantages over night and day lenses;