Oculopharyngeal muscular dystrophy (OPMD)
Oculopharyngeal muscular dystrophy (OPMD) is a rare genetic condition that causes weakness in the muscles around the upper eyelids and part of the throat called the pharynx. The condition may affect vision and cause problems swallowing and talking. OPMD affects both men and women. It often first appears between 40 and 60 years of age. As the disease slowly gets worse, the muscle weakness can extend into the neck and shoulders. In time, OPMD may affect the arms and legs and le