Eye injuries are often very painful and physical signs will develop. However if you look at your horse‚Äôs eyelashes you may be able to detect a problem very early on. Compare the lashes on one eye to the other. If they are drooping or not pointing straight out, this could be one of the first indicators that the eye has an issue. Eventually your horse may develop excessive tearing, redness, squinting, holding eye shut, and the cornea may be cloudy. These symptoms signal a significant problem and help should be sought as soon as they are detected.