Looks like DrFrag put it in the
wrong discussion 
Anyway this image shows that in the 80s, the bottom of the eyes are more flat than in the 2000s, but the iris still takes most of the place in the eyes. Hopefully DrFragenstein did not mess with Astro's eyes in this image (I checked this

).
Speaking about iris, did some of you noticed that some people have whereas other don't? It looks like all cute characters have iris, and other don't. Especially female characters have, of course, Astro being the "cutest robot in the world", he has iris too. The only female character not having iris is the "battle axe"


That's the right character for those who hadn't guessed

The real sign that someone has become a fanatic is that he completely loses his sense of humor about some important facet of his life. When humor goes, it means he's lost his perspective.
Wedge Antilles
Star Wars - Exile