Subconjunctival Hemorrhage

ByZeba A. Syed, MD, Wills Eye Hospital
Reviewed/Revised Apr 2023
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    Subconjunctival hemorrhages are small accumulations of blood beneath the conjunctiva (the membrane that lines the eyelid and covers the front of the eye). Sometimes the whole eye appears red and sometimes only a part appears red. The blood comes from small blood vessels on the surface of the eye, not from inside the eye. Because the blood does not involve the cornea (the clear layer in front of the iris and pupil) or the interior of the eye, vision is not affected.

    The Conjunctiva and Subconjunctival Hemorrhage
    The Conjunctiva
    The Conjunctiva
    Subconjunctival Hemorrhage
    Subconjunctival Hemorrhage

    This photo shows a collection of blood under the conjunctiva (the membrane that lines the eyelid and covers the front of the eye).

    ... read more

    DR P. MARAZZI/SCIENCE PHOTO LIBRARY

    Subconjunctival hemorrhages usually result from minor injury to the eye, straining, lifting, pushing, bending forward, vomiting, sneezing, coughing, or eye rubbing (gentle or vigorous). Rarely, they occur spontaneously. Subconjunctival hemorrhages may appear frightening but are almost always harmless.

    An Inside Look at the Eye

    Subconjunctival hemorrhages disappear on their own, usually within 2 weeks. No treatment is helpful or necessary.

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