> If your lens is being scratched by this try spending a bit more on better glass. There's no point in skimping on something you hold on your eyes the entire day.

Doesn't always work that way. I never skimp on glasses, atm I'm looking through 500+€ Zeiss lenses (that's just for lenses, frame price not included), I've had them for a year and have one visible scratch. I always take care of my specs, always carefult when cleaning or putting on table but still have one pretty big and annoying scratch. How did it get there, I have no idea.