The conjunctiva can be affected by a wide variety of organisms,some of which are too rare to be considered here, and sometimes the infected conjunctiva is of secondary importance to more severe disease elsewhere in the rest of the body. Molluscum contagiosum is a virus infection, which causes small umbilicated nodules to appear on the skin of the lids and elsewhere on the body, especially the hands. It can be accompanied by conjunctivitis when there are lesions on the lid margin. The infection is usually easily eliminated by curetting each of the lesions. Infection from Phthirus pubis (the pubic louse) involving the lashes and lid margins can initially present as conjunctivitis but observation of nits on the lashes should give away the diagnosis.
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