Colorblind Glasses & Contacts
Those living with colorblindness, or color vision deficiency, face challenges in everyday activities that most people take for granted. The inability to differentiate colors has a constant impact from driving to shopping for clothes.
While there is no cure, visionary experts have developed a new way to alleviate the condition. Keep reading to learn how innovative glasses and contacts are changing the way the colorblind see the world.
Different Types of Colorblindness
Generally, an inherited condition, colorblindness affects an estimated 300 million people worldwide. There are seven different types, but red-green colorblindness is the most common form. Many colorblind people also have trouble seeing blue and yellow, and in extreme cases, no colors are seen at all.
The trouble differentiating between colors often results in people developing their own ways of compensating, whether by telling them apart by brightness, timing, location, or even using an app. But now, researchers have come up with a far more accurate and practical solution.
New Options for the Colorblind
Colorblind glasses have specially tinted lenses that help a colorblind person see colors more accurately. The tints are based on the type and level of colorblindness. For example, red-tinted glasses can aid in distinguishing between shades of red and green. They tend to be bulkier than your average reading glasses and can come in both prescription and nonprescription lenses.
Another option is innovative contact lenses infused with gold — yes, gold! Gold nanoparticles help scatter light and are used in various ways across biomedicine and technology. In this case, tiny gold particles are mixed with a hydrogel polymer (a soft and flexible material ideal for contact lenses) to create rose-tinted molds that filter light when red and green overlap.
Both gold-infused contacts and tinted glasses can provide similar levels of effectiveness.
How They Work
Cone photoreceptors within the eye’s retina are what make color vision possible. Abnormal overlapping response to light by different cone cell types (those usually sensitive to red or green lights) causes most color blindness.
To offset this abnormality, colorblind glasses filter wavelengths of light where the overlap occurs. This allows the brain to distinguish red wavelengths from green more accurately, thus resulting in better color perception.
It’s important to understand that colorblind glasses are not a cure, nor do they entirely create normal color vision. But they can allow individuals with color impairments to see colors they’ve never seen before through revolutionary technology.
Visionary Eye Doctors is proud to offer options for our colorblind patients and is committed to educating the community on evolving treatments. Keep updated with our blog for the latest industry news and visionary advancements. You can also schedule an appointment online.