Lenses for lights

I have 2 1997 cars and both of them have cloudy light lenses. The cloudiness appears to be in the lense itself. Does anyone know of anything I can do to clear up the lenses? Thanks. Paul.

If it is yellow, you can take a scratch remover or rubbing compound to them. There are even cleaners for plastic lenses on the market. If it is condensation, you have a leak in the headlight, and it will need sealing or replacing.

Jon