How to clear clouded headlights on 1991 Volkswagen Passat

The outside of the headlight glass has clouded over the last couple of years. Can it be cleaned?

2 answers
Meguires make good cleaning products to clean the lens. You can get a product you apply like wax and take off with a cloth or a product that requires using a buffer. Any auto parts store wil have it.
ordinary brasso works wonders