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Subconjunctival Hemorrhages


Melvin I. Roat

, MD, FACS, Sidney Kimmel Medical College at Thomas Jefferson University

Last full review/revision Apr 2021
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Subconjunctival hemorrhages are extravasations of blood beneath the conjunctiva.

Subconjunctival hemorrhages usually result from minor local trauma, straining, sneezing, or coughing; rarely, they occur spontaneously. The extent and location of hyperemia can help determine etiology. Diffuse hyperemia of the bulbar and tarsal conjunctivae is typical of conjunctivitis. Subconjunctival hemorrhages alarm the patient but are of no pathologic significance except when associated with blood dyscrasia, which is rare, or facial or ocular injuries.

Subconjunctival hemorrhages are absorbed spontaneously, usually within 2 weeks. Topical corticosteroids, antibiotics, vasoconstrictors, and compresses do not speed reabsorption; reassurance is adequate therapy.

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Keratoconjunctivitis Sicca
There are two types of keratoconjunctivitis sicca (KS): evaporative KS and aqueous tear-deficient KS. The former is caused by accelerated tear evaporation. The latter is caused by inadequate tear volume and is commonly part of which of the following conditions? 
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