Wallace, Idaho. Wallace is a historic city in the Panhandle region of the U.S. state of Idaho and the county seat of Shoshone County in the Silver Valley mining district. Wallace sits alongside the South Fork of the Coeur d'Alene River (and Interstate 90) and the town's population was 784 at the 2010 census.
Sometimes, a head injury, eye trauma or another condition or disease can cause ptosis. Generally, this occurs when there is either damage to the âlevatorâ muscles that hold the eyelids up, or damage to the nerves which control these muscles.
Depending on the cause, ptosis may be classified as: 1  Neurogenic ptosis: Refers to the condition in which the nerves attached to the muscle are affected. 2  Myogenic ptosis: Refers to sagging of the lid due to a problem with the muscle that raises the eyelid.