LightSpeed, check out Nannini goggles. They have a model meant to go over glasses, provided they are not to big. Guess that has to be ckecked out in the flesh. But they also have models that can be fitted with a removable insert inside the goggle. So you can take the insert to your optic and get glasses to your prescription. Nice solution, but the total could be rather expensive. Or you could do as I do, wear contacts inside goggles...
Robbie the Norseman 2004 V6 Roadster Sherwood green