Do leos have inner eyelids?
 

I was wondering if leos have inner eyelids like cats. A couple of times I've thought I saw one. I was taking pictures of one of my girls, Nemisis, and when I looked at the pics I realized that I'd actually gotten a shot of it. It was only visible for a split second. She's in the process of licking her other eye in the pic. If they don't have inner eyelids, any theories on what this membrane might be?

-Alice

Here's another shot of her, taken just before that shot was to show that her eye is normal. Just a little background, Nemisis is a runty female I've had for 3 years who lost her tail as a baby. The regrow never really grew out. But, she eats fine and is otherwise healthy and is a great little pet.
-Alice