Myopia/heavy eye syndrome A rare cause of horizontal diplopia

摘要

A 30-year-old woman with myopia (-8 diopters) developed binocular horizontal diplopia over a year. She had chronic migraine and no other symptoms. Ocular motility showed a comitant esotropia (20 diopters), and 2-diopter right hypertropia. MRI (figures 1 and 2) showed features of heavy eye syndrome,(1) which is associated with superotemporal prolapse of the posterior globe, degeneration of lateral rectus-superior rectus band, and displacement of the lateral rectus downward.(2) The abduction failure may be confused with a sixth nerve palsy. Our patient was treated with prisms with partial success, which along with strabismus correction are the treatment options.