Ptosis, the three cases
Ptosis is the drooping of the upper eyelid that causes visual impairment. The are three cases of ptosis as shown in this video, and the disorder can occur at birth or develop later in life.
Ptosis is the drooping of the upper eyelid that causes visual impairment. The are three cases of ptosis as shown in this video, and the disorder can occur at birth or develop later in life.
