Patch loses an eye, but not his spirit
Patch looks a lot like the other Kentucky Derby contenders — he’s a sleek, muscled, 3-year-old thoroughbred. At least, he looks like the other racehorses from the right side. On the left, where others have an eye, Patch has an empty, pingpong ball-sized socket.
Patch lost his eye due to an ulcer that never healed. He came out of his stall one morning with a swollen and tearing eye, his trainer said, and no one knew why. The eye worsened and eventually had to be removed. Fittingly, and a little eerily, the colt was already named Patch.
As an underdog with a great story — and a Twitter account — Patch is easy to pull for, and he’s proving to be a fan favorite in the days leading up to the race on Saturday. But as a one-eyed racehorse, he’s neither unique nor even the first to run in the Kentucky Derby: One ran in 1982, another in 2004 and another in 2007.
“We very commonly have situations where racehorses have to have their eyes removed, and the majority of racehorse trainers don’t even think twice about it,” said Nicole M. Scherrer, a clinical assistant professor of ophthalmology at the New Bolton Center of University of Pennsylvania School of Veterinary Medicine.
Sports fans will recall human athletes who have competed successfully with less-than-complete vision. Orioles pitcher Chris Lee is legally blind in one eye, as was Wesley Walker, a Jets wide receiver in the 1970s and ’80s. Bryan Berard, a former NHL player, lost his eye playing hockey and came back to the ice.
Because of how a horse’s vision works, losing an eye likewise doesn’t have to end an athletic career. We humans have small, round pupils that allow us to see very well front and center. But we don’t have very good peripheral vision. Horses, by contrast, have the largest eyes in the animal kingdom, and their long, horizontal pupils allow them to get an enormous view from side to side, said Janet L. Jones, a cognitive scientist who trains horses and has written about how horses see the world.
Additionally, while human eyes move in tandem and give us a view of 140 or 150 degrees, horses can move their eyes separately for a view of about 350 degrees.
Jones says to imagine you are holding up a piece of cardboard with two small pinholes, centered to each of your eyes. You would easily see what’s directly in front of you, but nothing of what’s behind you or to the side. To correspond to where a horse’s eyes would be located, you would crease the cardboard down the middle, and add two long slots on either side.
“You can see that you would get a totally different view of the world,” she said. “And if you were just to imagine covering up the left slot on your horse cardboards, and then run in great big circles to the left, you would have an idea of what this horse is attempting to do.”
So how does Patch do it? Scherrer said it has to do with that extraordinary side vision.
“Just because the one eye was removed doesn’t mean that they can’t see anything on that side,” she says. “So if the left eye is removed, the right eye looks out in front, and can actually see a little bit to the left as well.”
Patch’s impairment could present a problem, Scherrer said, “if a horse came out of nowhere and bumped him from the left side.” That’s unlikely to happen because bumping another horse during a race constitutes a foul. Also, Patch’s residual vision — and his jockey’s guidance — should prevent contact.
Patch adjusted quickly after losing the eye, his trainer, Todd Pletcher, told BloodHorse.
“And after a couple weeks, we were like, ‘This horse is fine,’ ” Pletcher said. “I mean, there is common sense stuff, like I don’t come up to him without letting him know I’m there. You don’t want to startle him, things like that. But really, you really wouldn’t know it and you don’t really have to do anything special with him either from a rider standpoint on the track or around the barn.”