Bluemagic lens restorer is a great product if your len is just cloudy. I have done headlight lenses that were yellow and looked really yellow and bad and they came out like new. They also make a protectant that you put on to help keep them looking like new. It takes a little elbow grease and don't use microfiber towels. An old sock works great and don't let the cream dry on the lens. Buff the creme off the lens while its still wet. This product is avaliable at your local PEP boys