Written by True Eye Experts
What’s it like to be color blind? Contrary to what the name implies, color blindness usually does not actually mean that you don’t see any color, but rather that you have difficulty perceiving or distinguishing between certain colors. This is why many prefer the term color vision deficiency or CVD to describe the condition. CVD affects men more than women, appearing in approximately 8% of men (1 in 12) and .5% of women (1 in 200) worldwide.
Having color vision deficiency means that you perceive color in a more limited way than those with normal color vision. This ranges from mild, in which you may not even be aware that you are experiencing color differently, to severe, which is perhaps the more appropriate from to be called “color blind” and involves the inability to see certain colors.
CVD can be inherited; it is caused by abnormalities in the genes that produce photopigments located in the cone cells in your eyes. The eyes contain different cone cells that fire in response to a specific color, blue, green or red and together allow you to see the depth and range of colors that the normal eye can see. The type of color blindness and therefore the type of color vision that is impaired, is based on which photopigments are abnormal. The most common form of CVD is red-green, followed by blue-yellow. Total color blindness or the complete inability to perceive color is quite rare. About 7% of males have congenital color blindness that they inherit from the mother’s X-chromosome.
Color blindness can also be the result of eye damage, specifically to the optic nerve, or to the area in the brain that processes color. Sometimes an eye disease, such as cataracts, can also impact one’s ability to perceive color. Systemic diseases such as diabetes or multiple sclerosis can also cause acquired CVD.
Red-green color blindness does not mean only that you can’t tell the difference between red and green, but rather that any color that has some red or green (such as purple, orange, brown, pink, some shades of gray, etc) in it is affected.
You many not realize all of the ways you use even subtle distinctions in color in your daily life. Here are some examples of ways that CVD can impact your life and make seemingly everyday tasks challenging:
Knowing that one is color blind is important for some occupations that require good color discrimination such as the police officers, railway workers, pilots, electricians etc. These are just a few of the ways that CVD can impact one’s daily life. So is there a cure? Not yet.
While there is no cure for CVD, there is research being done into gene therapies and in the meantime there are corrective devices available including color vision glasses (such as the Enchroma brand) and color filtering contacts that for some can help to enhance color for some people. If you think you might have CVD, your optometrist can perform some tests to diagnose it or rule it out. If you have CVD, you can speak to your eye doctor about options that might be able to help you experience your world in full color.
Our mission at True Eye Experts is simple — provide the best possible care to our patients. We make sure we’re doing this a few different ways. Our V-Eye-P Exam is one of the most comprehensive eye exams in the industry. We use state-of-the-art medical technology to screen, diagnose, and treat more conditions than most other providers in the area. We have an extensive collection of designer eyewear that can complement any patient’s face, style, and budget, and our advanced contact lens fitting process can help even “hard-to-fit” patients wear contacts comfortably. Book an appointment online at one of our True Eye Experts locations, conveniently located throughout Central Florida. Have questions or prefer to book over the phone? Give us a call today.
Pink Eye (Conjunctivitis): Symptoms, Treatment & More
Sjogren’s Awareness Month – Understanding The Invisible Disease
"I have been getting my eyes checked by Dr. Samuel Teske for years. He is very thorough and thoughtful. The staff is also very professional and attentive. Highly recommend True Eye Experts!"
Everyone at this office is very friendly, helpful, and professional, whether it's helping you buy new frames, being fitted for glasses, or just interacting at the front desk. If something is wrong with my glasses, they are quick to remedy the situation. I would highly recommend this office for all your eye care needs!"
"Dr. Randich is personable and thorough. She spends time educating her patients with warmth and genuine concern. Staff is always friendly, helpful, and quick!"
"Staff was very professional, and the eye exam used the latest technologies. Very impressed with all that was done to check my eyes. Great experience!"
I had an emergency and needed to be seen as soon as possible. They fit me in right away and got my injury addressed and on the road to recovery! The staff is so professional and caring! Everyone had a smile on their faces & was welcoming. Thank you so very much for everything! – Kristen L.