Proptosis vs. Ptosis
Difference Between Proptosis and Ptosis
Forward displacement of an organ, especially an eyeball.
Abnormal lowering or drooping of an organ or a part, especially a drooping of the upper eyelid caused by muscle weakness or paralysis.
(medicine) The prolapse of a bodily organ, especially drooping of the eyelid or the breasts.
drooping of the upper eyelid caused by muscle paralysis and weakness