Conjunctivitis is when the conjunctiva a thin layer that covers the white part of eye- [thin layer of connective tissue that covers the outer globe of the eye (i.e. the bulbar)] and the inner eyelid-[lines the inner surface of the eyelids (i.e. the palpebral)] become inflamed (hot, red and swollen) and/or affects the inside of the eyelid.
Sheikh A, Hurwitz B, van Schayck CP, et al. Antibiotics versus placebo for acute bacterial conjunctivitis. Cochrane Database of Systematic Reviews Published Online First: 12 September 2012. doi:10.1002/14651858.cd001211.pub3
Cause
It can be mistaken for:
Does one have: