Monovision is the name given to the art and science of fitting contact lenses on a patient who has developed presbyopia. Presbyopia is the unavoidable change in vision that usually occurs at around 40 ...
Then there are special effect lenses and coloured contacts with zero power that you can buy for cosmetic reasons or for special fancy dress events like Halloween. Chances are you already have a ...
“So, most of the time you shouldn't be wearing contact lenses overnight while you're sleeping." Cosmetic contact lenses, like those that alter your eye color, and contact lenses approved by the U.S.