To me, the biggest risk with safety glasses is forgetting how much is NOT protected by them, and I don't just mean your face. They are meant to protect you from something flying more or less straight at your eye, but not from any other direction. For instance I used to be an avid shooter, and when shooting indoors in a booth, a necessary piece of equipment besides the glasses was a baseball cap in order to prevent a stray piece of brass from falling behind your glasses. :yikes: When I use a Dremel tool, I typically hold the work relatively close to my face in order to see, but then stuff wants to fly up under the bottom of the glasses.
Most goggles that do protect all around seem to have other disadvantages for me in terms of vision or ventilation, or comfort. An added factor for me is that I'm too old to wear contacts now, so I have to fit protection over my eyeglasses. All these considered, a good face shield is the best thing for me.
As far as I know any decent pair of safety glasses will be made of polycarbonate, which is a very tough, but soft material, and the amount of shielding around your eye is really the only safety difference between any of them. Well that and price of course. :rofl: Since polycarb scratches so easily, you can find some models that have a scratch resistant coating, and anti fog coatings are nice to find as well.