Possible ocular annoyance.
The possible annoyance is that he saw some striations on my cornea, which might be nothing, but might turn out to be something significant down the road. Certainly, there won't be a problem for years, but there's a chance that they could do something bad five or ten years down the line. Not worth worrying about, but the optometrist's office is in the Costco, and we only have a ten-dollar co-pay, so he suggested that, as long as I'm going to be there shopping anyway, stop in every couple months, just to keep an eye on it. No pun intended.
It's in my right eye, which is my non-dominant eye anyway. And I've already got lousy depth perception. If I actually lost my right eye (which isn't actually a plausible outcome of anything that this could be -- I'm just sayin'), I'd lose right-side peripheral vision, which would kind of suck, but not actually be that serious. So when the worst-case scenario, which is actually not even a scenario worth considering, isn't particularly worrisome, I don't really worry.