Three women with extrinsic oculo-muscular distrophy were studied. In two patients the symptons were began at 25 and another one at 56 year-old. Non miogenic features were observed: in case one there was familial otosclerosis. This patient had impossibility to beget children Her first menstruation was observed at 19 and the last at 40 year-old, like to case 2, which was the only to have electrocardiographic alterations. Romberg's signal and profound hyporreflexia was obtained in case 3, whose family had a lot of member with catarat. Biopsy of the non ocular muscles was made too, in spite of patient's symptons had been concerning to ocular muscles only. All of non ocular muscles had miogenic features. In electromyogram examination of non ocular muscles the miogenic features were observed too. Therefore, we believe in diffuse miogenic process in spite of ocular manifestation had been the only patient's compleints.