I know it sounds a little scary, my daughter and I were a little sceptical, but it doesn't get too hot. Just warm. My daughter absolutely loves it. I like it because I don't really care for mascara and it works great with or without it.
Haha I just burned my ear really bad yesterday. I can't imagine burning my eye. I have a beauty blog though and someone had asked me to so a post on how to successfully curl your lashes, so I may give this a go. :)