Chris completely agree with eyesign being shit, my father has a big old chequer cock that has what we call 'fish eye' . It has nearly no colour in hiseye and he often throws this in his offspring, he earnt his spot in the stock loft and has been there as long as I can remember.
At the same time as was said already as soon as most of us handle a bird we look at the eye and I know it means nothing but you have to be honest a nice eye on a good bird does add to the charm