Chameleon's eyes HUGE and BULBOUS, but quickly sucked back in?

[LizardLurkin]

I observed a new behavior today.
Now, I know that the eyes can balloon when they're cleaning them, and I will preface that my chameleon is shedding...Though, no mister went off anywhere near this time. I was very shocked to walk in the room, look into his enclosure, and see his eyes so disturbingly large.
I couldn't get a photo, but it looked somewhat like this:

I opened the enclosure to get a better look at him, and he slowly sucked them back in.
My assumption, or hope, is that if he "went back to normal" it's not a health problem, but I do know chameleons will hide significant health problems in the presence of others so it's got my head spinning.
Of course...if it was a frightening sort of eye swelling, would he really have control over it?
It was very bizarre to look at. What are you up to, sir?

 

[ehdee6]

Oh Spooble and his eye shedding. Hopefully it was just him and his quirkiness.

 

[LizardLurkin]

His eyes are often a source of worry.
I will hope it was just some effort to loosen the skin around his eyes during shedding, or otherwise cleaning.

 

[TCMontium]

I observed the same momentary huge eye moment on my young chameleon yesterday while she still had some old dead skin on her eyelid. I think, I hope, it is just some thing they can casually do and not a health issue.