Final answer:
An infection of the transparent membrane that lines the eyelid and eyeball is known as conjunctivitis or pink eye.
Step-by-step explanation:
An infection of the transparent membrane that lines the eyelid and eyeball is known as conjunctivitis or pink eye. Conjunctivitis is characterized by inflammation of the conjunctiva, often accompanied by a discharge of sticky fluid. Bacterial conjunctivitis is most commonly caused by Haemophilus influenzae, but can also be caused by other species such as Moraxella catarrhalis, S. pneumoniae, and S. aureus. Viral conjunctivitis tends to produce a discharge that is more watery than the thick discharge associated with bacterial conjunctivitis. The infection is contagious and can easily spread from one eye to the other or to other individuals through contact with eye discharge.