Disposable contacts last from one day to two weeks. Extended wear contacts are the ones you can sleep in. Colored contacts enhance or change your eye color. Ortho-k contacts are designed to help you see better even when you're not wearing them. Special-effect contact lenses have unusual designs, like flames or stars.
Toric contacts correct astigmatism.
UV-blocking contacts help to protect your eyes from sunlight. For more information, please visit the Contact Lens section. Learn more about disposable and frequent replacement contact lenses . Extended wear contacts allow more oxygen to reach your eye, which means it's safer to sleep in them than in daily wear contact lenses. You can wear extended wear lenses without removal for up to seven days.