Corneal Abrasion

Corneal abrasion is a defect in the outer layer of the cornea which is called the epithelial layer. This defect is either a full thickness which involves all the thickness of epithelial layer or just partial thickness. It can be also small or large defects.

There is a difference of corneal ulcer and abrasions. Corneal ulcer will involve the basement membrane and the underneath layer which is corneal stroma while the abrasion won’t involve the basement membrane.

Causes

2- Contact lenses. Overuse, tight contact lens or infection which usually starts as abrasions with epithelial defects.

3- Trauma.

4- Blepharitis.

5- Infection.

6- Foreign body.

Signs and symptoms

2- Blepharospasm.

3- Photophobia or light sensitivity.

4- Excessive tearing.

5- Blurred vision.

Treatments

1- Removal or treatment of the causative factor.

A- If the cause is contact lens, remove it and use artificial tears with antibiotics ointments. Don’t wear your contact lens more than 8 hours during the day and don’t wear them overnight or during sleep.

B- Tight Contact lenses. Change the type or the size of your contact lens.

C- Blepharitis Treatment. (Go to Blepharitis Treatment Main Page)

D- Foreign Body. Should be removed and treated with antibiotics.

2- Artifical tears.

3- Antibiotic Ointments. Antibiotics will protect against infection while ointment will help to make the blink smoother on the defects.

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