Is ptosis covered by insurance?

Yesterday morning I woke up and felt like one of my eyes was less open. Only one eyelid was drooping, and it felt like my eyebrow was sinking into the inside of my eye.

Drooping eyelids and eyebrows pressing on the eyes indicate ptosis.

I heard that I have to do it, is that correct?

Is there no way to avoid eyelid surgery if I don't want to have double eyelid surgery?

I'm curious whether insurance coverage is possible since the surgery is not for cosmetic purposes if I decide to proceed.