MSD Manual

Please confirm that you are a health care professional

honeypot link

Corneal Foreign Bodies in Animals

By

Sara M. Thomasy

, DVM, PhD, DACVO, Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis

Last full review/revision Mar 2020 | Content last modified Mar 2020
Topic Resources

Corneal foreign bodies are frequently observed in domestic animals. They are usually organic material, but sand, metal, and glass foreign bodies are also seen. Presenting signs include variable blepharospasm, tearing, and a variable reflex uveitis (aqueous flare, miosis, iridal swelling, ocular hypotony, and possible hypopyon).

Foreign bodies can be identified on the conjunctival surface, in the posterior third eyelid fornix, or on or in the cornea. Those that adhere to the ocular surfaces are usually removed under topical anesthesia with either vigorous irrigation or small, serrated ophthalmic forceps. If the foreign body has embedded within the deeper corneal layers or has penetrated into the anterior chamber, general anesthesia is required for careful removal from either the anterior corneal surface or the anterior chamber. It is imperative that the location of the foreign body (ie, depth within the cornea) be established prior to its removal. If in doubt, it should be assumed that it penetrates into the anterior chamber.

The corneal wound is apposed with simple interrupted 7-0 to 9-0 absorbable sutures. Postoperative therapy typically includes topical and systemic broad-spectrum antibiotics, mydriatics, and systemic NSAIDs. Prognosis for vision is usually good. Infrequent complications include variable corneal scar formation, septic endophthalmitis, cataract formation, and secondary glaucoma.

For More Information

Others also read
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Test your knowledge
Primary Survey (Triage) and Resuscitation
Bradycardia in a cat, as evidenced by a heart rate <120 beats/min, is most likely associated with which of the following? 
Become a Pro at using our website 

Also of Interest

Become a Pro at using our website 
TOP