Ophthalmology (noun)

The branch of medicine and surgery concerned with the study, diagnosis, and treatment of disorders of the eye and visual system.

Origin:

Derived from the greek words "ophthalmos" meaning "eye" and "logia" meaning "study of", it was first recorded in the 19th century.

Examples:

1. The ophthalmologist treated my eye infection.
2. Ophthalmology is the branch of medicine concerned with the study, diagnosis, and treatment of disorders of the eye and visual system.
3. He studied ophthalmology in order to become an eye doctor.
4. The ophthalmology department at the hospital is equipped with the latest technology.
5. Ophthalmology is the branch of medicine that deals with the anatomy, physiology and diseases of the eye.