[Heatwave]

Go to any motorcycle dealership near you ... Harley, Honda, Kaw, whatever ... and get a bottle of Novus #2 plastic polish. You might be able to find it at Autozone, Advance Auto, etc., also. Apply a bit of Novus to a soft cotton towel and rub it on the lens ... rub it vigorously. Then wipe off. Check your work. If you need another application, get after it. Novus #2 will do the job probably better than any other product on the market ... just my opinion based on years of using Novus on motorcycle windshields, helmet face shields, goggles, and shatter-resistant plastic glasses.