Short story: Me and a friend jumped a Freight Train in L.A. and took a trip out into the Desert. We got off in Indio, some little Desert Town like Palm Springs, and I noticed I had something in my eye. We had been jumping from Freight Car to Freight Car and had gotten into these Gondola Cars (Flat Cars with sides for Bulk Stuff like Coal). I remember standing at the sides and looking forward into this swirl of desert sand the train had kicked up. I think I got something there as the Train sped through the Desert. After sleeping at the Train Yard, we left and got something to eat. Then I went to some little Medical Clinic and found an Eye Doctor. He tried 'scraping' it first. That didn't work, so he broke out the Drill. I'm sitting there, with my head in this fucking clamp, as he turns this thing on, and says "Don't blink". WTF! So, this drill bit comes closer and closer to my open eye until it touches my eye, I start seeing tiny sparks! Oh Fuck! I think my eyeball is going to explode! It didn't, and it wasn't painful. He's says "OK. I think we got it". Puts a patch on my eye and I leave. About 15 minutes later as we are walking through some Orchard, I puke my guts out. Yeah. I think I was terrified, and this was my body's reaction.
So, after that, I'm a little gun-shy when it comes to my eyes.