Color blindness tests besides Ishihara

[Euphoriet]

I'm trying to carry out a color blindess test for a biology project. My friend, who is color blind, will help.. but I'm wondering what kind of tets I could use (besides the Ishiraha test).

I'm thinking having two pictures displayed.. and then brining down the "hue" color of a single color in photoshop.. and try to see if he can tell much of a difference between the two images... or see how much the change really affects him?

Any other ideas?

 

[Evo]

There have been a few threads on this subject here in biology that you might want to search for. I can't do it right now, or else I'd find them for you.

 

[zoobyshoe]

This site goes into a lot of detail about colorblindness and it's different forms. It might give you ideas about how to develop a new test. I can't think of any myself.

http://www.firelily.com/opinions/color.html

 

[DocToxyn]

I'm colorblind myself and have participated in several genetic/functionally-based experiments that took place at my university. These are a few of the interesting colorblind-related sites I have come across. http://micro.magnet.fsu.edu/primer/java/humanvision/colorblindness/" .

As far as coming up with your own test, you may not be able to come up with anything completely novel, but you sound like you're on the right track. Also, to do it properly you'll need several individuals that are affected with the same type of colorblindness and several controls, plus try not to make the endpoint too subtle, it should be an obvious difference in perception that differentiates the colorblind from normals.