Massachusetts Eye and Ear (Mass. Eye and Ear, or MEE) is a specialty hospital located in Boston, Massachusetts, United States, which focuses on ophthalmology (eye), otolaryngology (ear/nose/throat), and related medicine and research. Founded in 1824 as the Boston Eye Infirmary (BEI), it has also been known as the Massachusetts Charitable Eye and Ear Infirmary (MCEEI), and Massachusetts Eye and Ear Infirmary (MEEI). It is a teaching partner of Harvard Medical School. Mass. Eye and Ear has earned an international reputation for its successful treatment of the most difficult diseases and conditions of the eye, ear, nose, throat, head, and neck, and for its outstanding contributions to medical research and education.