im pretty sure kamfas tht have different eye colors are hybrids. the true kamfa is the Classic Kamfa, white eyes.
http://www.monsterfishkeepers.com/forums/showthread.php?232895-Male-Flowerhorn-fertility
There is no True kamfa flowerhorn, its what someone prefers or the norm as in features. I've been around for a while and "orginal" kamfas had red eyes when they first started coming out around in the mid 1990's. Through imbreeding as in father with daugther, sisters with brothers or mom and son lead their original strain to have a weaker fertility rate and with this breeders have noticed white/yellowish eyes generally mean inferential. Breeders note red eyes just mean they have a higher chance they are fertile and no kamfa strain has just white eyes because that would mean the chance for them breeding together successfully is minimal and successful.