Doctor insights on:
Types Of Colorblindness
Color blindness: Color blindness is due to a change in the color spectrum of the light receptors in the retina. Depending upon which one is changed, you may confuse red v. Green or blue v. Yellow. Sometimes the deficiency is complete but more common a partial loss. Testing using color plates or coding caps can tell you which type and the degree you have. ...Read moreSee 2 more doctor answers
Color Blindness: The majority of color vision deficiency (note I didn't say blindness as visual acuity is not usually affected) comes from a genetic disturbance causing poor or absent development of one or more familia of cone (color-receptor cell) in the retina. Most sufferers are male, since the genes for color vision reside on the X chromosome, only one of which is present in a male (XY versus XX in a female). ...Read moreSee 1 more doctor answer
A Rainbow of answers: Protanomaly- less red sens. Deuteranomaly- less green sens (most common) tritanomaly- less blue sens (rare) achromatopsia- see shades of gray (really rare) red-green color blindness (people with prot and deuteranomalies at the same time) worldwide, men are 15x more color deficient as women. ...Read more
Several: There are serious color deficiencies due to total substitution causing confusion in the red-green or yellow-blue axis. There are less serious ones causing confusion only for desaturated colors in the same axis. Rarely all color may not be perceived and there are color deficiencies due to broad spectrum retinal and optic nerve diseases like diabetes and optic nerve dysfunction. ...Read more
Yes: There are two situations in which the blue sensitive cones do not work properly dichromacy is the most severe with complete loss of blue perception. Tritanopia (blue deficient: s cone absent) anomalous trichromacy tritanomaly (blue deficient: s cone defect) the most common color deficiency is red–green (overall) 7 to 10% of the male population. ...Read more
Not yet: But see the ted talk where someone with achromatopsia used sound to interpret color. ...Read more
Not known: The only comparison is that color deficient people fail to discrimminate between various colors but no one really knows what their actual perception is. They will try to describe the world in terms of what the color normal see to stay within the majority so they will call the color of a tomato red, even if their color defect does not allow that. ...Read moreSee 1 more doctor answer
Not an all or none: "color blind" is a common term that describes a collection of color vision variations in the population.You can have partial or total deficiencies, the most of which involve red-green.The undetected colors appear gray.My mild red-green deficiency was picked up on a pre college physical using ishihara plates & my dr encouraged me to avoid pathology. I've never had pbs with traffic lights. ...Read moreSee 1 more doctor answer
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