Cherry eye is when the third eyelid, in the corner of the eye (closest to their nose) detaches from its regular position. Our Cincy had this on both eyes, the first when she was 12 weeks old, which was surgically reattached, and the other eye when she was 16 weeks old, and that eyelid was removed.

I don't have any close-up pictures on the computer of Cincy's eye. Here is the best I could find