I have an assortment of eyewear...
1. For dealing with anything that might be sharp/hot that could endanger my face/eyes.
2. Used when sanding greenware, dealing with anything ultra smelly like LoS or anything that has the possibility of giving off noxious fumes. I'm going to start some enamelling soon, it will be good for that too.
3. An ordinary pair of safety specs for minor torch work (soldering, firing metal clay), cleaning the loo.
I need to get some kiln glasses too!
http://www.turquoisefruit.com/silver/safety_masks.jpg