But...Instead of trying to pull it off just yet, I'd wait for the next shed. If you aren't sure and completely comfortable with trying to pull it off, don't! You could damage the eye permanently.
A lot of times, when a snake doesn't lose an eye covering, it will come off with the next shedding. When your snake sheds next, take a close look at the head piece of shed skin. If the lenses for both eyes are there, you're fine. If they're not, then it's time to look into careful manual removal of what was left behind.
It's fairly common for a snake to not lose an eye covering once in a while but in my experience, it doesn't usually happen repeatedly. I've only seen one snake that didn't shed his eye coverings every time he shed.
When I was a teen, my mom worked at a pet store (spending her weekly paycheck on feeder mice for my snakes. LOL!). They had this one snake that no one would touch because everyone said it was viscious. Mom isn't the type to just take everyone's word for it so she checked it out. It turned out that he really wasn't viscious at all. This poor tree boa had so many layers stuck on his eyes that he always struck at anything he thought he saw move. It was horrible and it took weeks to get all the extra layers off. It's been almost 20 years since I helped doctor that snake and I still hope that he went to a good home where his owner was the kind that paid attention to him.
