Bobert, some good advice above, and some nonsense. 1. Go to lens crafters (or whatever) and ask whether they can polish out the scratches. Where you bought them is the best place.
2. If no can do, ask if new lenses can be fitted- you might save some if the frames are still in production.
3. Buy a new pair (but have your eyes re-checked first by your opthalmologist to see if your prescription needs an update). Buy the protective goggles recommended by Liz.
ALL of the above already posted and good advice. I was lucky to have an optician working in a lab where I was employed. All eyeglasses benefit from periodic professional cleaning and slight re-polish (if not those stupid coated things).

NEVER try it yourself unless you have had training.