Decent lightweight safety glasses. I don't know exactly what type of damage they'd prevent, but they're light enought to put and and forget you're wearing them. A great reason to wear them all the time!

These are very nice, especially for the price. Lightweight, comfortable, well-designed, overall a great pair of safety glasses.

I use them daily at work spraying paint, no scratches yet and paint cleans right off. Double nicely as sunglasses as well.
Dewalt DPG54-2C Protector Smoke High Performance Lightweight Protective Safety Glasses with Wraparound Frame

Great price, sleek look, and it's dewalt! I bought these for my cousin because the previous Dewalt sunglasses I bought had lenses and were straining his eyes, so I bought these which were cheaper, fit great and does not strain his eyes. He likes them because it keeps him from getting a headache when doing contruction in the hot sun.

I use these in the ER for eye splash protection...very nice. They did fog some with a mask, gown, & hat on, but they fit nicely, are good optically and can't be beat for just over $4/pair.