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How Subconjunctival Hemorrhages Do Not Cause Pain

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Subconjunctival Hemorrhage

Subconjunctival hemorrhage is bleeding that happens between the white part of your eye (sclera) and the clear membrane that covers the outside of your eye (conjunctiva). There are many tiny blood vessels near the surface of your eye. A subconjunctival hemorrhage happens when one or more of these vessels breaks and bleeds, causing a red patch to appear on your eye.

Depending on the amount of bleeding, the red patch may only cover a small area of your eye or it may cover the entire visible part of the sclera. If a lot of blood collects under the surface of the eye, there may also be swelling. Subconjunctival hemorrhages do not affect your vision or cause pain, but if there is swelling, your eye may feel irritated.
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