what is medicine- what is corneal abrasions?
Corneal abrasion happens due to the damage to the cornea or scratches to the cornea. This occurs mostly due to finger-nails, contact lenses, foreign bodies, eyelashes, inward turning of the eyelid (entropion). Pseudomonas infection is associated with corneal abrasion due to the use of contacts lenses.
Herpes keratitis is commonly considered as a differential diagnosis of corneal abrasion.
In terms of presentation, patients with corneal abrasion may present with red painful eye, photophobia, blurring vision, watering eye, foreign body sensation and history of foreign body in the eyes or contact lenses wearers.
To diagnose the present of corneal abrasion, the diagnostic tests require are fluorescein stain and slit lamp examination. A fluorescein stain
is a yellow orange colour stain which is collected in the abrasions or ulcers and highlighting them.
Patient with sight threatening red eye should be referred to the ophthalmologist.
The management of corneal abrasion may include lubricating eye drops; antibiotic eye drops such as chloramphenicol and simple analgesia
such as paracetamol. The symptoms of photophobia is usually resolved by applying cyclopentolate eye drops. 2-3 days are needed for corneal abrasion to heal.
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