Should You Really Wear Contact Lenses For A Full Day? What’s Really Going on with Contact Lenses? Contact lenses are worn by millions of people around the world to help improve their eyesight and decrease the need for glasses. However, contact lenses and contact lens “abuse” can lead to serious eye problems. “Abuse” is the term used to describe contact lens habits that could be harmful and go against instructions by the manufacturer and your eye care provider. Some of…