Corneal Foreign Body

A corneal foreign body is an injury from material in your eye. This foreign body became stuck in (lodged) in the clear layer that covers the front part of the eye. Specks of metal, sand or wood commonly cause this injury. Using a local anesthetic, your caregiver removed the foreign body in your cornea. This local anesthetic is a medication that makes the cornea numb. Your eye will be painful when the local anesthetic wears off. Blinking the eye increases pain, so sometimes a patch is applied to eliminate this. The more you rest your "good eye", the better both eyes will feel.


  • The use of eye patches is not universal and their use varies from state to state and from caregiver to caregiver. If eye patch was applied:

  • Keep your eye patch on for as long as directed by your caregiver until your follow-up appointment.

  • Do NOT remove the patch unless instructed to do so to put in medications; then replace patch and re-tape it as it was before. Follow the same procedure if the patch becomes loose.

  • WARNING: Do not drive or operate machinery while your eye is patched. Your ability to judge distances is impaired.

  • If no eye patch was applied:

  • Keep your eye closed as much as possible. Do not rub your eye.

  • Wear dark glasses for as long as directed by your caregiver to protect your eyes from bright light.

  • Do not wear contact lenses for as long as directed by your caregiver.

  • Wear protective eye covering if your job or hobby involves the risk of eye injury. This is especially important when working with high speed tools.

  • Only take over-the-counter or prescription medicines for pain, discomfort, or fever as directed by your caregiver.


  • Pain increases in your eye or your vision changes.

  • You have problems with your eye patch.

  • The injury to your eye appears to be getting larger.

  • You develop any kind of discharge from the injured eye.

  • Swelling and/or soreness (inflammation) develops around the affected eye.

  • An oral temperature above 102° F (38.9° C) develops.


  • Understand these instructions.

  • Will watch your condition.

  • Will get help right away if you are not doing well or get worse.