A corneal abrasion is a scratch on the cornea. The cornea is the clear, front surface of the eye. It is located directly in front of the colored part of the eye.
The cornea has several layers that help protect the eye.
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Most corneal abrasions happen as a result of:
- Dust, dirt, sand, wood slivers, or metal shavings hitting 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 can dry out if your eyes are not fully shut during surgery
- Certain eye disorders
Last reviewedMarch 2014by Michael Woods, MD
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.