Chances are you wont notice the scratches unless they are big enough to trap snow in which case your really need new lenses..or you are focusing your eyes on the inside of your goggles...
99% of the time you'll be looking through your goggles not at the insides of them and hardly notice it..
'09 151 Never Summer SL-R
'10 K2 T1 DB Bots
'09 Burton Cartel Bindings