A new type of contact lens could help color-blind patients recover their lost color contrast and improve color perception 10 times, according to a study from Tel Aviv University in Israel,media reported. The study, published in The Optics Letters, is understood to correct the problem of green amblyopia by integrating ultra-thin optical devicemetasurfaces into ordinary contact lenses.
The custom contact lenses are a convenient and comfortable solution for color-blind patients, researchers said at a news conference Wednesday. They added that this approach could eventually be extended to help other forms of color blindness and other eye diseases.
“Although glasses based on this corrective concept are already available on the market, they are much more bulky than contact lenses,” research team member Sharon Karepov said in a press release. The optical element is ultra-thin and can be embedded in any strict contact lens, so refractive effects such as green low vision and other visual impairments can be treated with a contact lens. “
But researchers say clinical tests are needed before the contact lenses can be released.