8 doctors weighed in:
What causes color blindness?
8 doctors weighed in

Dr. Richard Bensinger
Ophthalmology
2 doctors agree
In brief: 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.

In brief: 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.
Dr. Richard Bensinger
Dr. Richard Bensinger
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Dr. Jon Fishburn
Ophthalmology
1 doctor agrees
In brief: Color blind
Most colorblindness is genetically based.
Some are acquired, such as macular degeneration, optic nerve diseases, diabetic retinopathy, glaucoma, some medications.

In brief: Color blind
Most colorblindness is genetically based.
Some are acquired, such as macular degeneration, optic nerve diseases, diabetic retinopathy, glaucoma, some medications.
Dr. Jon Fishburn
Dr. Jon Fishburn
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Dr. Theodore Wu
Ophthalmology
1 doctor agrees
In brief: Color
Color blindness may be inherited or acquired.
Inherited causes arise when a person receives a defective gene (usually sex-linked), usually causing red-green color deficiency. There are many causes of acquired color blindness, such as trauma, diabetes, macular degeneration, optic nerve disorders, ultraviolet light.

In brief: Color
Color blindness may be inherited or acquired.
Inherited causes arise when a person receives a defective gene (usually sex-linked), usually causing red-green color deficiency. There are many causes of acquired color blindness, such as trauma, diabetes, macular degeneration, optic nerve disorders, ultraviolet light.
Dr. Theodore Wu
Dr. Theodore Wu
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Dr. Jason Black
Internal Medicine
1 doctor agrees
In brief: Hereditary
Color blindness is a hereditary sex-linked recessive disorder. That means the gene that codes for it is located on the x chromosome.
So when males inherit the gene, they will be color-blind since they have only one x. But females would have to inherit the genes on both of their x chromosomes to have the disorder.

In brief: Hereditary
Color blindness is a hereditary sex-linked recessive disorder. That means the gene that codes for it is located on the x chromosome.
So when males inherit the gene, they will be color-blind since they have only one x. But females would have to inherit the genes on both of their x chromosomes to have the disorder.
Dr. Jason Black
Dr. Jason Black
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