Corneal foreign body (eye foreign body)
About Corneal foreign body (eye foreign body)
A foreign object that hits the cornea can cause an injury. The cornea is a transparent covering of the center of the eye. It allows light to penetrate into the eye, where it strikes the retina and is eventually interpreted by the brain as vision. The cornea is soft and the foreign object may become lodged in it. If the foreign object is metal a rust ring can develop around the injury as well. If the foreign body and the rust ring are not removed a corneal scar can occur resulting in permanent vision loss.Symptoms
Redness, foreign body sensation, increased tearing, eye pain, decreased vision, light sensitivity.Tests & Diagnostics
A history and physical exam will be performed. Complete ophthalmologic exam using a slit lamp to rule out foreign bodies in the cornea or other injuries may be performed.Prescription medications
Conventional treatment summary
Removal of the foreign body. If a rust ring has developed it must be removed with an ophthalmic burr to prevent permanent scarring. Antibiotic drops and/or ointment are used to prevent infection. If the patient's tetanus status is not up to date a tetanus booster may be given.Medical specialties
Ophthalmology
This page is educational content, not medical advice. Always consult a qualified clinician for diagnosis and treatment of Corneal foreign body (eye foreign body).