Equine Uveitis: Chronic Eye Disease Welfare in Horses

Key Welfare Facts

Equine recurrent uveitis (ERU) causes repeated episodes of painful intraocular inflammation leading to progressive vision loss.
Episodes are characterised by squinting, tearing, cloudiness, and photophobia causing significant acute welfare compromise.
Appaloosa and Warmblood breeds have higher genetic predisposition, with some populations showing very high prevalence.
Between episodes horses may appear normal, but cumulative damage leads to cataract, retinal detachment, and blindness.
Cyclosporine implants placed in the vitreous significantly reduce flare frequency and preserve vision in affected eyes.
Blind horses can lead good lives with appropriate management, but early intervention preserves welfare best.
Management requires dedicated monitoring for early signs and prompt treatment to minimise cumulative damage.

Welfare Assessment

ERU is a chronic, progressive welfare challenge requiring long-term management commitment. Working with an equine ophthalmologist to develop a treatment protocol, including consideration of implants in refractory cases, offers the best welfare outcomes for affected horses.

What You Can Do

Seek veterinary assessment immediately at any sign of eye discomfort or cloudiness
Work with an equine ophthalmologist for specialist management of recurrent cases
Discuss cyclosporine implants as a welfare-improving option for frequent flare cases
Provide UV-protective face masks and access to shade to reduce triggering factors