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Corneal Abrasion

Definition:
Corneal abrasion is a scratch on the cornea. The cornea is the clear, outer surface that covers the front, or colored part, of the eye. The cornea has several layers that protect the eye. Deep corneal abrasions may scar and permanently impair vision.

Causes:
Most corneal abrasions happen as a result of:
  • Dust, dirt, sand, wood slivers, or metal shavings entering the eye
  • Vigorously rubbing the eye, especially when something is in it
  • A fingernail, tree branch, or other object scratching the eye
  • Wearing contact lenses, especially if the lenses are worn longer than directed or not cleaned properly
  • Not protecting the eyes during surgery (The cornea dries when under general anesthesia and you cannot blink or produce tears normally. A dry cornea is more likely to get a scratch.)
  • Certain eye disorders
Risk Factors:
A risk factor is something that increases your chance of getting a disease or condition. Risk factors for a corneal abrasion include:
  • Having a dry or weak cornea
  • Wearing contact lenses
  • Working in a setting with eye hazards, such as metal working or gardening
  • Participating in sports where accidental eye injuries can occur
Symptoms:
Symptoms may include:
  • Pain that may worsen when opening or closing the eye
  • A feeling that a foreign object is in your eye
  • Blurred vision
  • Tearing
  • Redness
  • Sensitivity to light
  • Headache
Diagnosis:
The doctor will ask about your symptoms and perform an eye exam. The doctor will look for any foreign objects in the eye and may place drops in your eye to aid in seeing the scratch under a special light. You will usually be referred to an eye specialist.

Treatment:
Minor scratches usually heal within 1-2 days. Your eye may be patched for improved comfort. In some cases, your eye doctor will place a contact lens in the eye to help relieve the discomfort and improve healing. The doctor may ask you to come back to make sure the abrasion is healing.

Treatment may include:

Removing a Foreign Object
The doctor will remove the foreign object by flushing the eye with saline or by using a cotton swab, needle, or other tool. You may have to wear a patch over the eye; however, a 2006 meta-analysis (i.e., analysis of a group of studies on the same topic) found that eye patching did not decrease pain and may actually slow healing.

Medication
Medications may include:
  • Antibiotic eye drops or ointment to prevent infection
  • Pain medications as needed
Self-Care
Always see an eye doctor if your eye is bothering you. Besides treatment prescribed by your eye doctor, self-care may include:
  • Do not rub your eye. Rubbing may worsen the abrasion.
  • If you are not wearing an eye patch, moist compresses may help relieve the pain.
  • Do not put your contact lenses back in your eye until you get your doctor's approval.
Prevention:
Prevention aims to avoid injury to the cornea or provide early treatment should an injury occur. If something scratches or penetrates one of your eyes, seek medical attention immediately.

To avoid injuring the cornea:

  • Do not rub your eyes.
  • Wear safety glasses or protective goggles when participating in sports, yard work, or other activities that could injure your eyes.
  • Wash your hands before handling your contact lenses. Clean and wear contact lenses as directed. Never sleep in your contact lenses unless approved by your eye doctor.

If something gets in your eye:

  • Try to flush it out with water. Splash the water so it drains toward the side of your head, not toward your nose and other eye.
  • Do not rub your eye.
  • If you can see the object on the white part of the eye, use a moist cotton swab or soft tissue to lift it out. Do not use anything to try to touch an object resting on your cornea (in front of the colored part).
  • Call your doctor.

If an object strikes your eye at a fast pace, it can be a medical emergency and you should seek medical attention immediately. Furthermore, if a chemical splashes into your eyes, flush your eyes immediately and call for medical assistance.

 
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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