Abstract
The evaluation of the patient with acquired strabismus presents a challenge to uncover those entities which are potentially harmful or need immediate therapeutic intervention. This is best accomplished by determining the anatomic location of the deficit which often necessitates collaboration with a neurologist and neuroradiologist to insure an adequate evaluation. Types of acquired strabismus which always require further investigation include strabismus secondary to an intraorbital process, newly diagnosed myasthenia gravis, unexplained paralytic strabismus, and chronic, presumed ischemic, cranial nerve neuropathy.