I learned this just the other day in my First Aid ReCertification....
We all have seen pictures with red eye in them...
If you ever see a head on Pic and the subject has only ONE Redeye, he really should see a Eye Doctor and be checked.It could be a sign of serious problems. It has to do with light, and the color spectrum.If one eye shows Redeye and the other doesn't it could be easily checked by the Doctor..
You only have 2 eyes..
Simple solution, get a red colored contact for the none colored eye !
JD