Subconjunctival Hemorrhage
A Subconjunctival Hemorrhage is an File:Subconjunctival Hemorrhage Before After.Jpg that ...
- See: Human Eye, Ophthalmology, Sclera, Conjunctiva, Blood Vessels, Hypertension, Side Effect, Blood Thinner, Aspirin, Warfarin, National Institutes of Health, Vomiting.
References
2018
- (Wikipedia, 2018) ⇒ https://en.wikipedia.org/wiki/subconjunctival_hemorrhage Retrieved:2018-1-14.
- File:Subconjunctival hemorrhage before after.jpg(Top) A stress induced subconjunctival hemorrhage in the left eye one week after hemorrhaging.
(Bottom) Same hemorrhage four weeks after hemorrhaging. Some of the blood in the sclera has turned yellow, like a bruise.
Subconjunctival hemorrhage, also known as subconjunctival haemorrhage and hyposphagma, is bleeding underneath the conjunctiva. The conjunctiva contains many small, fragile blood vessels that are easily ruptured or broken. When this happens, blood leaks into the space between the conjunctiva and sclera.
Such a hemorrhage may be caused by a sudden or severe sneeze or cough, or due to high blood pressure or as a side effect of blood thinners such as aspirin or warfarin. It may also be caused by heavy lifting, vomiting, or even rubbing one's eyes too roughly. In other cases, it may result from being choked or from straining due to constipation. Also, it can result as a minor post-operative complication in eye surgeries such as LASIK.
Whereas a bruise typically appears black or blue underneath the skin, a subconjunctival hemorrhage initially appears bright-red underneath the transparent conjunctiva. Later, the hemorrhage may spread and become green or yellow, like a bruise. Usually this disappears within 2 weeks.
Although its appearance may be alarming, in general a subconjunctival hemorrhage is a painless and harmless condition; however, it may be associated with high blood pressure, trauma to the eye, or a base of skull fracture if there is no posterior border of the hemorrhage visible.
