Doctor insights on:
Can You Regain The Ability To See Color If You Are Color Blind
No: Unfortunately, at this point there is no cure for color blindness. The exciting news is that jay neitz, phd at the university of washington was able to introduce the missing gene for color blindness into the retina of color blind monkeys and cured the disease. The monkeys responded to colors. Time magazine listed this as among the top 10 scientific discoveries in 2009. So there is hope! ...Read moreSee 2 more doctor answers
Ophthalmologist prefer to use the term color deficit as blindness conveys other meanings. Lowered color perception can be inherited (many forms), can result from advanced loss of retinal cells, inherited retinal disease, and some forms occur due to CNS injury. There are excellent tests for the various types and they can be functionally ...Read more
Probably: A light color text on a dark background irregardless of the colors involved, would allow distinction based on the brightness of the text rather than the color saturation. For someone red-green color blind, the most common, if the print were light red and the background light green with the same reflectance, then the print probably could not be red by the red-green color deficient. ...Read moreSee 1 more doctor answer
There is none: You can have colour blindness when you see red as black, but not black as red. ...Read more
Color blindness: There is no such condition as "reverse color blindness." the most common type of color "blindess" typically occurs in males. These people confuse red and green colors. In rare cases, people can be born with complete color blindness and only see colors as various shades of light and dark. In severe cases of color blindness, patients often don't see very well either. ...Read moreSee 1 more doctor answer
If color normal: The tests are designed with little dots that are shaded along the axes of confusion for the color deficient. A color normal will see the indicated symbol or number while the deficient will miss it. ...Read more
Muted color: Most color deficient persons have normal acuity so they can see the smaller things that ordinary people can see. But their color distinction is altered and they will confuse some colors with others - so they observe a muted palatte of colorl. ...Read more
Not likely: Most color blind people have trouble with reds and greens. If you had blue-yellow colorblindness (rare), you would see gray instead of blue. You likely just perceive colors a little different than someone else. Colorblind people cannot distinguish certain colors at all. For example, they see no difference between green and brown. ...Read more
Necessary?: The most common type of "color blindness" is red-green color deficiency. Blue-yellow deficiency or true color blindness (achromatopsia) are rare. Color testing can identify which. Red-green deficiency can be adapted to fairly easily and is not very limiting, but the others can significantly impact vision. If he has had it since birth and is functioning well, he probably doesn't need to see a doc. ...Read more
If a color blind person is red-green color blind, can they still see most shades of those colors normally?
Altered perception: They will see shades of color in all colored objects but will but see the full range, so colors that might appear bright to you will seem attenuated to the color deficient and some colors will seem what you might term brownish. The mixture seen depends upon the depth of the color blindness in each individual. Because of this most color deficient persons adopt rather bland wardrobes. ...Read moreSee 1 more doctor answer
How long does it take to regain color vision after stopping medication that was causing color blindness?
Color blindness: The color hue from certain medications should reverse with stopping that medicine. There are some medications that if the color vision has been affected then the damage is done and not reversible. The color vision defect with these is more advanced. ...Read moreSee 1 more doctor answer
Many: Most color defiencies have a confusion spectrum between certain colors (for instance reds and greens), but can see other colors close to normal. So they have a limited palette compared to color normal, but certainly can recognize certain colors. That would also include recognizing the various colors of others' eyes. ...Read moreSee 1 more doctor answer
Yes: Color vision is not an issue with driver's licensing. All traffic signals are made of colors that will not be confusing to the color deficient . Driver's license testing only is concerned with line acuity (like 20/20) and field of vision (how far can you see to each side). ...Read moreSee 2 more doctor answers
State specific: States have specific requirements for licensure, being color blind or having physical disabilities does not exclude you from driving. Contact your dmv, licensure division, and discuss with them what difficulties you experience. Most states offer licensure possibly with restrictions, if you pass the written/ in-car testing. You may need modifications to the car. Licensure is about safe driving. ...Read more
Almost anything: Being colorblind should not limit a person much in life - even some famous artists have been colorblind! the only restriction i can think of is that colorblind people are not allowed to get a commercial driver's license, so cannot become a professional trucker, but otherwise colorblind people can usually learn to recognize traffic light signals and drive a car without difficulty. ...Read moreSee 1 more doctor answer
Testing: You can compare your color perception with someone known to be color normal. An ophthalmologist has available color perception test booklets to determine whether it is present, and what spectrum the deficiency lies within. This is important for certain occupations. ...Read moreSee 1 more doctor answer
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