Color Blindness test

After recently encountering a sudden loss of vision in both eyes, I have found it necessary to learn more about my eyes, and more importantly how to use simple tests to check the eyes for different conditions, disorders and potential disease. One test I find interesting is named the Ishihara test for color blindness. This test is often used by ophthalmologists and optometrists to test for color blindness and rule out the possibility of retinal or optic nerve disease. The test results reveal any red-green color blindness.

Ishihara color blindness test:

1.) Find the numbers made up from the colored dots in each picture shown below.

2.) Hover your mouse pointer over each picture to reveal it's answer.

Most people (even those partially color blind) can answer the first two images correctly. Those with a green-red color vision loss might not see anything but colored dots in the rest of the pictures.

Another color test – This one is a bit tougher: 

A green-red color blind person might see the number 2 while a person with normal vision could see the number 5.

This Simple Solution published under Self Improvement Tags: blind person, color blind, color blindness test, color test, color vision, colored dots, ishihara color blindness test, ishihara test, loss of vision, normal vision, ophthalmologists, optic nerve disease, reveal, vision loss