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If you have color blindness, it means you see colors differently than most people. Most of the time, color blindness makes it hard to tell the difference between certain colors. Read about the types of color blindness and its symptoms, risk factors, causes, diagnosis, and treatment.
Having color vision deficiency (also called color blindness) means you can’t see certain colors the way most people do — or you may not see color at all. Learn the basics about color vision deficiency. Different types of color vision deficiency cause problems with seeing different colors.
Causes of Color Vision Deficiency. Having color vision deficiency (also called color blindness) means you can’t see certain colors the way most people do — or you may not see color at all. Learn the basics about color vision deficiency.
Last updated: August 7, 2023. If color blindness runs in your family or if you think you or your child may have color blindness, talk with your eye doctor. They can give you or your child a simple vision test to check for color blindness. Read about the different types of tests they might use.
Color Blindness; Diabetic Retinopathy; Finding an Eye Doctor; Floaters; Retinal Detachment; Explore NEI's eye health information
A new study found that special patented glasses engineered with technically advanced spectral notch filters enhance color vision for those with the most common types of red-green color vision deficiency (“anomalous trichromacy”).
Browse or search the National Eye Institute’s (NEI) resources about dozens of eye conditions and diseases. Get the basics about symptoms, diagnosis, and treatments — or go in depth to see all the details.
Stargardt disease can cause color blindness, so your eye doctor may also test your color vision. Fundus photography. Your eye doctor may take a photo of your retina to check for yellowish flecks on your macula.
At a glance: Retinitis Pigmentosa. Early Symptoms: Loss of night vision and side (peripheral) vision. Later Symptoms: Vision loss and blindness. Diagnosis: Dilated eye exam, electroretinography (a type of retina test), genetic test. Treatment: Low vision aids, vision rehabilitation.
The cornea is the clear outer layer at the front of the eye. There are several common conditions that affect the cornea. Read about the types of corneal conditions, whether you are at risk for them, how they are diagnosed and treated, and what the latest research says.