Which part of the body is primarily involved with conjunctivitis?

Conjunctivitis, commonly known as pink eye, is an inflammation or infection of the conjunctiva, which is the thin, transparent membrane that lines the eyelid and covers the white part of the eyeball. The condition causes redness, irritation, and discharge, primarily affecting the eyes. Therefore, the eye is the main area of the body involved with conjunctivitis. This condition may arise due to various causes, including infections (viral or bacterial), allergies, or irritants, but regardless of the cause, the symptoms manifest specifically in the eye region.