The Top 7 Things to Know about Equine Recurrent Uveitis

Understanding equine recurrent uveitis (ERU, or moon blindness) can help owners spot eye issues early.

No account yet? Register


Editor’s note: This article is part of’s ongoing coverage of topics presented at the 2012 Western Veterinary Conference held in February.

When equine recurrent uveitis (ERU) develops, it often looks inconspicuous at best. Maybe your horse’s eye is a little watery, or he’s squinting in the bright sunlight. It’s nothing to worry about, right? Wrong. At a recent veterinary convention, one veterinarian discussed just how serious ERU is if left untreated.

During a presentation at the 2012 Western Veterinary Conference, held Feb. 19-23 in Las Vegas, Nev., Jacquelin Boggs, DVM, MS, Dipl. ACVIM, discussed equine recurrent uveitis with a veterinary audience. Following are the top seven things horse owners should know about this potentially blinding disease:

1. Uveitis is the leading cause of blindness in horses. "While data on the incidence of uveitic horses is lacking, uveitis is the leading cause of blindness in horses worldwide," said Boggs, an equine technical services veterinarian for Pfizer Animal Health

Create a free account with to view this content. is home to thousands of free articles about horse health care. In order to access some of our exclusive free content, you must be signed into

Start your free account today!

Already have an account?
and continue reading.


Written by:

Erica Larson, former news editor for The Horse, holds a degree in journalism with an external specialty in equine science from Michigan State University in East Lansing. A Massachusetts native, she grew up in the saddle and has dabbled in a variety of disciplines including foxhunting, saddle seat, and mounted games. Currently, Erica competes in eventing with her OTTB, Dorado.

Related Articles

Stay on top of the most recent Horse Health news with

FREE weekly newsletters from

Sponsored Content

Weekly Poll

sponsored by:

When do you begin to prepare/stock up on products/purchase products for these skin issues?
57 votes · 57 answers

Readers’ Most Popular

Sign In

Don’t have an account? Register for a FREE account here.

Need to update your account?

You need to be logged in to fill out this form

Create a free account with!