Name from west to east the four Great Lakes shared by Canada and the US Lake Superior, Lake Huron, Lake Erie, Lake Ontario Name the Great Lake that lies entirely in the boundaries of the US.
Definition of ophthalmology for English Language Learners. medical : the study of the structure, functions, and diseases of the eye.
If your husband should be in need of an ophthalmologist, his optometrist will refer him. Ophthalmology is a branch of medicine so an ophthalmologist is an MD. Ophthalmology specializes in the anatomy, function, diseases, and surgical treatment of the eye.