Eyelid drooping is excess sagging of the upper eyelid. The edge of the upper eyelid may be lower than it ought to be, ptosis eyelid [หนังตาตก, which is…

Eyelid drooping is excess sagging of the upper eyelid. The edge of the upper eyelid may be lower than it ought to be, ptosis eyelid [หนังตาตก, which is…