Progressive External Ophthalmoplegia

Abstract

THIS condition, in which the movements of the eyeballs tend progressively to diminish in amplitude, is usually accompanied by ptosis, and has an hereditary trait; it has been variously described as "Chronic Progressive Nuclear Ophthalmoplegia", "Chronic Dystrophy of the External Ocular Muscles", "Ocular Myopathy", "Familial Ocular Myopathy and External Ophthalmoplegia", "Progressive Muscular Dystrophy involving the Extra- ocular Muscles", and so on. Since then seventeen more cases have been described.