10/28/2026
Equine Eye Ulcers 👀
Equine corneal ulcers are most commonly caused by trauma to the surface of the eye. Horses are especially prone to eye injuries because of their large, prominent eyes. Common causes include hay or straw, tree branches, dust or debris, rubbing the eye, foreign material, and scratches from fencing or other objects. Some ulcers can also become infected with bacteria or fungi, which can make them much more serious.
Typical signs include squinting, tearing, swelling, redness, sensitivity to light, cloudiness, or holding the eye partially or completely closed. Because eye problems in horses can worsen quickly, a painful or abnormal-looking eye should be treated as a same-day veterinary concern.
A veterinarian will usually stain the cornea with fluorescein to confirm an ulcer and examine the eye for infection or deeper damage. Treatment often includes topical antibiotic medication, pain control, and sometimes atropine to relieve painful muscle spasm inside the eye. More complicated ulcers may require antifungal treatment, frequent medication, or referral.
It is important not to use steroid-containing eye medications unless a veterinarian has confirmed there is no corneal ulcer, because steroids can delay healing and make some infections dramatically worse.
If you would like to make an appointment with us, have any questions or concerns, please call or text (918) 549-0333. Thank you!