Which type of tests would an eye doctor do to tell if someone is color blind?

Color vision tests. The most common is the ishihara color vision test, where there are a series of pages which have numbers created with dots of different colors. Those with good color vision seen one number, and those with color blindness see a different number.

Related Questions

How are the eye doctors test for color blindness?

Yes. They use a booklet or chart with pictures made up of dots of various colors. People who are color blind for certain colors will not be able to see the image in the picture. Read more...
Yes. Doctors can tell if a person is color blind by using the ishihara test. This test consists of 38 circles of colored dots. Each of the circles of dots contains a hidden number made up of certain colors of dots. Depending on whether or not a person can read the number in the circles, his type of color blindness can be diagnosed. Parts of the ishihara test are posted on websites for people to use. Read more...
Color charts. Most eye doctors own an ishihara color vision test booklet which can be used to determine if you are color deficient. There are other booklets as well, color caps, and other more sophisticated means to determine the degree and type of color deficiency you might have. Read more...

When I take the cover test at my eye doctor I can only read up to the middle part of the line. The rest is in my blind spot. Is this normol.

No. . No. Did you address this with the doctor performing the exam? If not contact them and discuss it your problem. Read more...
It . It is important that this finding be carefully evaluated with an ophthalmologist. A test called a visual field will be able to MAP out exactly the limits of your vision. This deficit can then lead to a diagnosis of the problem. Read more...