Some tests for red-green color blindness
Notes:
- Because different color monitors reproduce colors differently, the figures on this site are
not a reliable test for red-green color blindness.
- These were take from two excellent sites:
- They are based on the Ishihara Test for Colorblindness used by most eye doctors.
If the above links do not work, try searching for "Ishihara"
In general, you see one figure if you have normal color vision and a different figure of you are red-green
color blind.
Card #1
- Colorblind individuals see a yellow square.
- Color normal individuals see a yellow square and a faint brown circle.
Card #2
- Colorblind individuals see a yellow circle.
- Color normal individuals see a yellow circle and a faint brown square.
Card #3
- Colorblind individuals see a number 17.
- Color normal individuals see a number 15.