Sometimes small blood vessels in the whites of the eyes can break,
causing a red spot or speck. This is called a subconjunctival hemorrhage. The
blood vessels may break when sneezing, coughing, vomiting, straining, or
bending over, but sometimes there is no clear cause. The blood may look
alarming, especially if the spot is large. If there is no pain or vision
change, there is usually no cause for concern, and the blood will go away in 2
to 3 weeks.
When there is bleeding into the eye, do not take aspirin or
aspirin-related products, which can increase bleeding. Use acetaminophen (such
as Tylenol) instead.
Bleeding between the colored part of the eye (iris) and the
cornea may occur with an injury and is much more
serious than bleeding in the white of the eye. This is called hyphema. It can
occur from a blunt blow to the eye or from an object puncturing and penetrating
the eye. There may be mild pain or no pain at all. Vision changes may also
occur. A hyphema needs to be evaluated by an eye specialist
(ophthalmologist).
Medications that help prevent blood clots may increase the risk of
bleeding in both the white or colored part of the eye.