Subconjunctival Hemorrhage

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Sub-Conjunctival Hemorrhage   -   Blood Red Eye


Sometimes the area just under the surface of the white part of the eye becomes blood red. This is because a blood vessel under the surface opens or ruptures. The cause of this is generally unknown, but it almost always occurs at night. The typical scenario is: the person wakes in the morning and looks in the mirror. They see a horrible looking eye, and it frightens the wits out of them. There is generally no pain, no history of trauma (although trauma can be a cause), and the vision is normal. However, on a scale of one to ten with ten being the worst, its seriousness is about a half of one, or very non-consequential.

Sometimes there is a history of sneezing, blowing the nose forcefully, straining (frequently with a bowel movement, or with orgasm).

On occasion, the cause is too much blood thinner, such as coumadin, aspirin, Plavix, or related  medication. If the person is taking  coumadin or warfarin, it would be a good thing to check the prothrombin time levels, as it could be a sign of the same thing happening elsewhere in the body.

Usually the bleeding will clear within a period of ten days to two weeks.