How can I fix my right eyelid that is folding/creasing differently, like a "triple fold". This doesn't look like Ptosis. (photo)

About 4 months ago my right eyelid starting folding or creasing differently than my left. At first I thought it was ptosis, but the eyelid level on both eyes is almost symmetric relative to the pupil. I can "reset" the eyelid to the way it always was before, by blinking hard. But then as soon as I blink normally, or look down, it reverts. It seems like instead of the skin folding inward, it's binding and causing the fold to happen inside the socket, creating a hollow appearance there. Thanks!