Many lesions that are removed from the upper or lower eyelids can result in notching of the eyelids after it heals. Any post-surgical deformity is important to avoid, and you should speak with a facial or oculoplastic surgeon that operates around the eyelids often. That being said,...
You have a straightforward partial separation of the muscle that raises the eyelid from the cartilage plate that stiffens the edge of the upper eyelid. That could be easily addressed through a ptosis repair that could be done by an oculoplastic surgeon or plastic surgeon experienced in eyelid...
The eyelid skin is the thinnest on the face and tends to stretch and become redundant over time as we age. As a male with a thicker skin type your fold is naturally fuller and thicker than someone with thin skin. These individual differences and changes over time are natural and do...