My rats never bite, but if my eyes get near them, they'll both go for them. Not aggressively, but they do bite down lretty hard if I don't move. They seem interested in my eyelashes and by my eyelid moving. Maybe they think its a bug or something bad?

 

My rats used to love sniffing my eyelids/lashes. They never tried to bite or even nibble on them, but it's always a possibility.

That's why I'm always a bit weary about letting ANY animal near my face. You never know what could happen. lol

 

Rats love to see my piercings, smell my mouth, check my nose breathing, and lord the eyes. I know they don't mean harm, but they can be unintentionally rough. I've been bit when they thought I had food but it was cherry Chapstick. Blinking eyes makes them want to catch them and investigate.

 

Do you think they could possibly scratch and damage your eyeball though if you let them close enough ?

 

My one girl always seems to attack my eye-area, whether its a scratch or licking but I've never had her actually bite that area. If your rat does it again, make sure you let her know that it is not ok! I usually bop my girls on the nose and say "No" very loudly so they understand when they do something wrong, and they catch on really quick.

For your brother I would just watch the area and clean it regularly!

 

I've had mine nip my eyelids too; I agree with Nanashi, I think they're just investigating. Ruby nipped my cousins eyelid a few weeks ago but she had heavy makeup on so we chalked it up to her trying to groom it off.

 

Our new fuzzlet LOVES investigating eyelashes, where Riddles has no interest whatsoever. I agree though, when they get close to my eye, I move them away.