Orbital Surgery in Two Horses

The case histories of 2 horses that required surgery within the orbit are described. In 1 horse, severely comminuted fractures of the left facial area and orbit were repaired in 2 stages, the first consisting of elevation and wiring of the depressed fractures. In the second stage, an autogenous tendon graft from the lateral digital extensor tendon of the left front leg was used to reconstruct the orbital floor and elevate the globe in the orbit. In the second horse, a retrobulbar tumor causing exophthalmos and prolapse of the nictitans was removed by creating a bone flap of the zygomatic process of the frontal bone for exposure.