They are available but you may have to search. Drivers of fast power boats need them for the same reason as pilots.
As an alternative:-
I use a pair of wraparound ski glasses made by Bolle, with interchangeable lenses. These are close fitting enough so that I don't get the wind coming round the sides and making my eyes water. They take a clip-in plastic frame which you can have glazed to your prescription and the side arms are good and secure so that they don't come off even when I crash (skiing that is).
The interchangeable outer lenses mean I can vary the tint to suit the conditions.
Haven't tried them for flying (not open cockpit) but it might be worth a try.
www.bolle.com
http://www.smithsport.com/products/moto/index.htm
Mike