You're Welcome. I'm also gald I could learn something new about catfish.Karl, Aweshade, Alex, thank you much for the helpful info and great links. I've started learning about this aspect.
So far, I surmise that the "too big eye" (and sometimes too big head and/or fins) occurs in stunted cichlids, including angels and discus, and fancy goldfish.
In catfish, the stunting is revealed mainly in skeletal abnormalities; no big eye symptom.
In all, of course, the stunting is revealed by the small size at maturity and short lifespan.
All the websites offered appear as reputable to me. Karl, SeriouslyFish is quite a reputable site. I found this article http://www.seriouslyfish.com/stunted-growth-means-stunted-lives/ very, very educational for me. For one, it appears I was mistaken about the very existence of the growth-inhibiting hormone. Stunting is rather the result of action of the growth hormone but modified by the body's stress response. Excellent article. I much recommend to all to read it.
http://www.bigfishcampaign.org/ is an excellent resource too. The way I see it, it is not against MFK and Co but simply for improvement in the area of our hobby that most of us appear to be passionate about.
Spot on about cichlid stunting
Didn't know that catfish only had skeletal symptoms