Color Blindness Symptoms & Diagnosis

Symptoms

If you cannot distinguish between some colors—particularly red and green or blue and yellow—see your doctor to determine if it is color blindness or another health condition.

Diagnosis

Your doctor will ask about your symptoms and medical history, and perform an eye exam and a simple vision test. or will refer you to an ophthalmologist (eye specialist) for testing. You may want to consider going to an eye specialist directly, instead of your medical doctor, since the eye specialist may be better suited to make a diagnosis.

Tests may include the following:

• Ishihara plates test—you will be asked to identify numbers or objects made of colored dots, surrounded by other dots of other colors
• An arrangement test—you will be asked to group or arrange chips according to their color