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Corneal abrasion
Scratch to the surface of the cornea of the eye / From Wikipedia, the free encyclopedia
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Corneal abrasion is a scratch to the surface of the cornea of the eye.[3] Symptoms include pain, redness, light sensitivity, and a feeling like a foreign body is in the eye.[1] Most people recover completely within three days.[1]
Corneal abrasion | |
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A corneal abrasion after staining with fluorescein, it is the green mark on the eye. | |
Specialty | Ophthalmology, emergency medicine |
Symptoms | Eye pain, light sensitivity[1] |
Usual onset | Rapid[2] |
Duration | Less than 3 days[1] |
Causes | Minor trauma, contact lens use[1] |
Diagnostic method | Slit lamp exam[1] |
Differential diagnosis | Corneal ulcer, globe rupture[1] |
Prevention | Eye protection[1] |
Frequency | 3 per 1,000 per year (United States)[1] |
Most cases are due to minor trauma to the eye such as that which can occur with contact lens use or from fingernails.[1] About 25% of cases occur at work.[1] Diagnosis is often by slit lamp examination after fluorescein dye has been applied.[1] More significant injuries like a corneal ulcer, globe rupture, recurrent erosion syndrome, and a foreign body within the eye should be ruled out.[1]
Prevention includes the use of eye protection.[1] Treatment is typically with antibiotic ointment.[1] In those who wear contact lenses a fluoroquinolone antibiotic is often recommended.[1] Paracetamol (acetaminophen), NSAIDs, and eye drops such as cyclopentolate that paralyse the pupil can help with pain.[1] Evidence does not support the usefulness of eye patching for those with simple abrasions.[4]
About 3 per 1,000 people are affected a year in the United States.[1] Males are more often affected than females.[1] The typical age group affected is those in their 20s and 30s.[1] Complications can include bacterial keratitis, corneal ulcer, and iritis.[1] Complications may occur in up to 10% of people.[5]