- Conjunctivitis is an inflammation of the conjunctiva, a tissue that lines the eyelids and covers the sclerae.
- The conjunctiva is an exposed mucous membrane that reacts to antigenic stimulation caused by contact with noxious stimuli.
- The superficial stroma of the conjunctiva is rich in lymphatic tissue, both diffuse and aggregated.
- When aggregated tissue is stimulated, it forms lymphoid follicles, which produce effector cells. Conjunctival plasma cells produce specific immunoglobulins as part of the secretory component of the immune response.1,2
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