Horse Eye Health: Uveitis, Corneal Ulcers, and Welfare

Eye conditions are a significant source of pain and vision loss in horses, with equine recurrent uveitis being the leading cause of blindness and severe welfare harm.

Key Facts

Equine recurrent uveitis (moon blindness) affects 2-25% of horses globally and is the leading cause of equine blindness
Uveitis causes intense pain and progressive damage through recurring inflammatory episodes
Appaloosa horses have four times the risk of uveitis compared to other breeds
Corneal ulcers are common equine emergencies requiring immediate treatment to prevent perforation
Blind horses can adapt well to their environment and maintain good quality of life with appropriate management

Welfare Considerations

Equine uveitis causes episodic but intense ocular pain and progressive vision loss that significantly impairs welfare. Treatment options including topical anti-inflammatories, intravitreal cyclosporine implants, and surgical removal of severely affected eyes can reduce pain and slow progression. Blind horses adapt remarkably well when their environment is kept consistent and companions are provided. Early recognition of pain signs including squinting, tearing, and light sensitivity enables timely intervention.

What You Can Do

Recognize signs of ocular pain including squinting, tearing, and cloudiness as veterinary emergencies
Work with an equine ophthalmologist for horses with recurrent uveitis to explore advanced treatment options
Manage blind horses in consistent, familiar environments with reliable companions
Consider cyclosporine implants for horses with frequent uveitis episodes to reduce recurrence