Well, let me tell you about eyes! LOL. I have a wonderful little mare that had moon blindness a bit in one eye, but it would only flair with high winds, it seemed. We had it under control with topicals and bute. She's be down for about a week, then right back in the game. Then for fun she poked that same eye with a stick in pasture, so she now had an eye ulcer. Which turned into a fungus infenction. Which turned into us putting a tube above her eye and then pushing meds through it 4 times a day. I held off on the tube at first, hoping we could get it handled without an invasive treatment. I have to say, GET THE TUBE if your horse ever has an eye infection that's isn't being handled topically. It worked wonders. Her eye is a bit scarred, and she has some loss of vision, but overall it's great. She's never been spooky, and we've worked a lot on her "blind side" with no issues whatsoever. A 1-eyed horse can be a 1-derful horse....hee. Here's another tip: the Guardian Mask. You can buy it online if you google Guardian. It's real UV protection, and the it has "bug eyes" that don't irritate or push on an eye that's already sensitive. My girl has 2, so I can rotate and wash them with frangrance-free soap (extra rinse).