Innovation

How This New Prototype Contact Lenses Can Help Color Blind People

Color blindness
Color blindness suggests people can't see color at all, when in reality, this couldn't be further from the truth (save for severe cases). Víctor Nuño

We may not have eyes that are as powerful as the ones insects have, or be as lucky as birds, but when it comes to function and color perception, the human eye does pretty well, especially when compared to other animals like, say, dogs. As such, human eyes typically are able to distinguish around 1 million colors. Unfortunately, there is such a thing as color blindness, which may limit some of the parts of that spectrum in people who have it.

According to a new update, however, a new type of contact lens might just be able to restore some of that lost range.

Prototype Contact Lenses

Now, fixes for some types of color blindness are nothing new on the market. In fact, a number of them can be easily found commercially, and are usually sold in the form of sunglasses that can filter frequencies in order to help fill up some color gaps in one’s vision. However, this new prototype created by engineers Sharon Karepov and Tal Ellenbogen from Tel Aviv University in Israel have managed to take that filtering technology into contact lenses, making it easier for people.

Because of this, the new contact lenses can potentially be custom-made in order to fit a person’s specific needs while also providing a host of new options to the market of color blindness therapy.

Color Blindness

Color blindness isn’t technically blindness, but is a series of conditions that affect our eyes and visual system and how they are able to identify light with different wavelengths. As such, people who are color blind can still see a wide variety of colors. However, it can be pretty limited, so they can’t see all of the available colors our eyes can perceive.

Commonly, people who are color blind have trouble telling apart colors that are present in the green and red wavelengths (meaning that the problems come from their M and L cones), and the new contact lens prototype aim to correct that.

But while it has already passed some tests, it’s yet to prove its worth in clinical testing. Nonetheless, what they achieved is still very promising.

Color blindness Color blindness suggests people can't see color at all, when in reality, this couldn't be further from the truth (save for severe cases). Víctor Nuño

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