Corneal abrasion (scratched eye)

What it is

A corneal abrasion is a graze or scratch on the cornea, the clear dome at the front of the eye. The cornea is very sensitive, so even a small scratch can be painful, but most heal quickly because the surface repairs itself rapidly.

Common symptoms

Symptoms usually come on suddenly after something contacts the eye.

• Pain and a strong feeling that something is in the eye
• Watering and redness
• Sensitivity to light
• Blurred vision or difficulty keeping the eye open

Causes

Common causes include a poke from a fingernail, dust, grit or sand, tree branches, and contact lenses, especially if worn too long or not cleaned well. Dry eyes can also make the surface more prone to grazing.

Self-care and when to seek urgent care

Do not rub the eye, and avoid contact lenses until it heals. Most minor scratches settle within a day or two. Seek urgent care if a chemical has splashed into the eye (rinse with water immediately and get help), if something is stuck in the eye, if there is a high-speed injury, or if pain or blurring is severe or not improving, as treatment can prevent infection.