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Monday, 20 February 2012

Severe Corneal Abrasion

The cornea is a transparent cover over the anterior part of the eye that serves several purposes, such as protection, refraction, and filtration of some ultraviolet light. This structure has no blood vessels and receives nutrients through tears as well as from the aqueous humor. The cornea is innervated primarily by the ophthalmic division of the trigeminal nerve and the oculomotor nerve.

Although the exact frequency of emergency department visits for corneal abrasions is unknown, a 1985 survey showed that around 3% of all cases to US general practitioners were corneal abrasions. In addition, in 2008, approximately 27,450 work-related eye injuries and illnesses occurred that caused missed time from work. See the following image

Patients with corneal abrasions are managed on an outpatient basis. Emergent ophthalmologic consultation is warranted for suspected retained intraocular foreign bodies. Urgent consultation is needed for suspected corneal ulcerations (microbial keratitis) (see the image below).
Corneal keratitis and staining.

See also corneal abrasion treatment

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