Do you have difficulty telling if colors are blue and yellow, or red and green? Do other people sometimes inform you that the color you think you are seeing is wrong?If so, these are primary signs that you have a color vision deficiency.Contrary to popular belief, it is rare for a colorblind person to see only in shades of gray.Most people who are considered "color blind" can see colors, but certain colors appear washed out and are easily confused with other colors, depending on the type of color vision deficiency they have.
Color blindness is not a form of blindness at all, but a deficiency in the way you see color.If you are colorblind, you have difficulty distinguishing certain colors, such as blue and yellow or red and green. The main symptom of color blindness is not seeing colors the way most people do.
If you’re color blind, you may have trouble seeing:
-The difference between colors
-How bright colors are
-Different shades of colors
Dr Shinobu Ishihara introduced in 1917—almost 100 years ago—the most well known color blindness test- Ishihara Plates. Each of his tests consists of a set of colored dotted plates, each of them showing either a number or a path. Since then this is the most widely used color vision deficiency test and still used by most optometrists and ophthalmologists all around the world.
The most common kinds of color blindness are genetic, meaning they’re passed down from parents.Color blindness can also happen because of damage to your eye or your brain. And color vision may get worse as you get older — often because of cataracts.
Meanwhile, there is no cure for color blindness. But some coping strategies may help you function better in a color-oriented world. Most people are able to adapt to color vision deficiencies without too much trouble. But some professions, such as graphic design and occupations that require handling various colors of electrical wiring, depend on accurate color perception.If you become aware early in life that you are colorblind, you may want to choose a career that does not require accurate color perception.