Howdy Clemonde,
About 4-5-6 months ago, my ~6yr-old Nosy Be' Panther had what appears to be the same thing. It came and went away in about a week. Right about the time that I was thinking of taking a photo of it, it was gone

. I assumed that it was an existing bony structure that was not returning to its intended position. I gave it a little nudge but it didn't seem like it wanted to be moved.
Someone needs to find us a drawing of the chameleon's eye socket structure

.
Isn't there a bony-like piece that can move around in that area? Anyway, all I can say for sure is that after it went away, it never came back into view (yet).