Like, okay, I can handle some changes. It'd be nice to have a consistent number of legs, but switching from four in the morning to two in the afternoon -- it's not the worst thing ever. But having to walk on three legs in the evening -- that's just ridiculous. What kind of organism walks on an odd number of legs? It's so inconvenient, I can never keep my balance. I swear, whatever mf came up with this system must have had some serious complexes...
The part of the Beholder's eye where beauty resides is separate from the part that he uses to see, so as long as you didn't take out the whole eye, you shouldn't have any issues.