Using safety goggles, not safety glasses, when grinding
Well, I've been doing this for 35 years now and it finally caught up with me.
I was using a cutting wheel on a surface grinder to cut of pillow block bearing off a shaft. I turned the grinder to make a cut and iron sparks bounced off a nearby mounting and right under my safety glasses.
It's nothing new for me; it's happened many times. This time a piece went into the second layer of my cornea and stuck. I waited to go to the doctor figuring it would go away. My eyesight went from excellent to cloudy and I reported into the ER two days later. It had to be drilled out and will leave a scar, but not in my line of sight. It's been almost a week and I still can't see clearly, but it's clearing up.
I bought a pair of goggles for unpredictable grinding work. I realize now that I'd rather loose a foot than my eye.