Join Date: Jun 2011
Location: Lake Havasu, Arizona
I think it's considered normal. The four bettas in my room each have different eye colors, albeit not as distinct as your little guy.
Ratchet, my blue crown tail, had amber eyes.
Frog, my sister's multi female, has black eyes.
Yorick, my cousins red crown tail, has a mix of blue and amber.
And Moonshoes Potter, my multi crown tail, has a mix of black and blue.
I think so long as the pupil isn't clouded over or some strange color, they can see fine, and your boy's pupils are definitely not clouded at all.