Which species is known to have the poorest outcomes following cataract surgery?

Horses are recognized as having the poorest outcomes following cataract surgery compared to other species. This is primarily due to several factors specific to equine ophthalmology. The ocular anatomy of horses is quite different from that of smaller domestic animals, leading to more complex surgical procedures and higher risks of complications. Horses may also have specific breed-related factors or health conditions that can complicate surgical intervention and postoperative recovery. Additionally, the larger size and more active nature of horses compared to other species can influence the surgical outcomes and rehabilitation process.

When considering the other species, cats and dogs generally have more favorable prognoses after cataract surgery, with a considerable success rate in restoring vision. Goats, while not as commonly evaluated for cataract surgery, also tend to have manageable outcomes compared to horses. Thus, the combination of anatomical differences, inherent risks associated with the procedure, and overall care and recovery makes horses the species with the poorest surgical outcomes following cataract surgery.