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Doctor insights on: Color Blindness

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Dr. Lawrence Kale
99 doctors shared insights

Color Blindness (Overview)

Color blindness is a condition where an individual has a decreased ability or complete inability to detect differences between various colors. For example, red-green color blindness is the inability to distinguish between red and green shades.


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Effects of being color blind?

Effects of being color blind?

Minor: Depending upon the degree of your deficiency, you will be able to function for most activities (for instance traffic lights are a color designed to be seen by the color deficient). Occupations with issues for you: painter, fruit grader, electronic assembly worker, gemology, appraiser, artist. Legal restrictions for police work, pilots, boat captains. ...Read more

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Dr. Lawrence Kale
99 doctors shared insights

Color Blindness (Overview)

Color blindness is a condition where an individual has a decreased ability or complete inability to detect differences between various colors. For example, red-green color blindness is the inability to distinguish between red and green shades.


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How does color blindness affect driving now?

Red green lights: In most cases red-green color discrimination is defective, but most people cope with it by using the position of various colors as the indicator rather than the color. ...Read more

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Explain the symptoms of color blindness?

Explain the symptoms of color blindness?

Color blindnes: A color blind person does not know of his problem until he compares himself with others. The visual acuity is usually normal. Color recognition is diminished along the axis of confusion for the type of deficiency. If you have this you could not be employed in color dependent occupations such as microcomponent assembly or fruit grading. ...Read more

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Signs of child being color blind?

Depends upon age: Obviously inability to distinguish between red / green colors. Some have trouble with blue/yellow. It does assume the child knows his colors. I am not aware of a condition where no colors are seen. These are usually specific to certain colors. ...Read more

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Taking my child to the optometrist to test for color blindness. How do we prepare?

Taking my child to the optometrist to test for color blindness. How do we prepare?

No need to: It's a simple test where they show the child a book (called an ishihara) with numbers hidden within colored dots. He/she will be asked to identify the numbers and based on that the doc will be able to tell if he/she is color blind. ...Read more

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What are the tests involved for color blindness?

Color plates: The most commonly available test is the ishihara color recognition plates which present numbers buried in dots of color over the axis of color confusion for the deficient. This can tell severe from mild color deficiency. Other tests are availbale to tell which type of color deficiency you have. This does have some occupational significance. ...Read more

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How do you know if you have color blindness?

Testing: See your eye doctor. They have simple tests which can determine if there is any color vision disorder. ...Read more

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What causes color blindness?

What causes color blindness?

Mostly genertic: In inherited color deficiency, a visual pigment has its spectrum of color reception altered to a small degree and to a large degree in those with high degree of this disorder. The photoreceptor count is the same, so the acuity is not lost - just the color recognition. There are a few less common color vision losses due to advanced retinal, optic nerve and CNS diseases. ...Read more

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Nearsightedness is a recessive trait. red-green color blindness is a sex-linked recessive trait, what does this mean?

Nearsightedness is a recessive trait. red-green color blindness is a sex-linked recessive trait, what does this mean?

An Autosomal: Recessive disorder: Both parents are unaffected carriers of a mutant gene. Each of their children has a 25% chance of inheriting the mutant gene from both & having the disorder. X-linked recessive: Mom carries a defective gene on one of her X chromosomes. Each son has a 50% chance of inheriting the X chromosome with the mutant gene & having the disorder; each daughter, 50% of being a carrier. ...Read more

Dr. Damien Luviano
50 doctors shared insights

Blindness (Definition)

Vision impairment and blindness are conditions in which a person cannot see well or see at all, even with glasses or contact lenses. If a person's best vision (with correction) out of either eye is only 20/70 - 20/200, he is impaired. If he can see no better than 20/200 or his visual field is no more than 20 degrees (severe "tunnel" vision), ...Read more


Dr. David Chandler
75 doctors shared insights

Color Blind (Definition)

Color differentiation difficulties are where a person has trouble distinguishing the difference between certain colors. One of the most common difficulties involves difficulty telling apart the ...Read more