Its been a common option for eyeglasses for decades but now some exciting news for contact lens wearers.
The FDA has approved the first contact lenses with light-adaptive technology.
The Acuvue Oasys contact lense automatically darkens in bright light. The lenses react to the sun's ultraviolet rays and will return to their normal tint when the user moves to normal or darker lighting.
The Acuvue Oasys contact lense will be available next year.