The FDA Has Approved World’s First Contact Lenses That Turn Dark In Bright Light

NIH’s (National Health Institute) National Eye Institute has estimated that 42% of Americans have myopia (nearsightedness, where objects closer to the eye are better visible than those far away), and about 5-10% suffer from hyperopia or farsightedness.

The Acuvue Oasys Contact Lenses with Transitions Light Intelligent Technology has been designed for individuals with myopia or hyperopia, and for some people with astigmatism (eye curvature defect causing distorted vision at all distances) too.

Additionally, no conditions can be detected with the use of this new eyewear nor can a person’s exisiting sight be improved.

The Latest Contact Lens Technology

Photochromic optical lenses are those that darken on exposure to high-intensity radiations, like UV. The contacts return to their original, clear states in the absence of this kind of light. Currently, only photochromic sunglasses are available in the market.

The technology alters according to the nature of the light present. It does this by filtering the amount of UV radiations that reach the eye. This adjustment results in a darkening of the lenses in bright sunlight and a regular tint in normal or dark conditions.

Any Risks Involved?

The American Academy of Ophthalmology’s Ravi Goel referred to the transitioning lenses as “interesting”. But, he commented on the risks they could pose in terms of eye damage due to overexposure to harsh lighting.

The spokesperson, in an interview with CBS News, said, “If your eyes are exposed to strong sunlight for too long without protection, UV rays can damage the cornea and adjacent tissues. Long-term sun exposure has also been linked to an increased risk of cataracts, macular degeneration, and growths on or near the eye.”

Reference:

Meghna Rao, The FDA Has Approved World’s First Contact Lenses That Turn Dark In Bright Light, Article from www.evolving-science.com