headlights glazed over, yellowing

Other than replacing them, is there anything a person can do to them to clear them up? thanks

It all depends on where the discoloration is (inside or outside) on the lens. You could try using a quality plastic cleaner or polish. Do not try rubbing or polishing compound as they are to abrasive. "Mother's" makes a good plastic polish that I use once a year to combat the cloudy headlight lenses. This will only work on the outside though, so try it, it could save the expense of replacement lenses.

It all depends on where the discoloration is (inside or outside) on the lens. You could try using a quality plastic cleaner or polish. Do not try rubbing or polishing compound as they are to abrasive. "Mother's" makes a good plastic polish that I use once a year to combat the cloudy headlight lenses. This will only work on the outside though, so try it, it could save the expense of replacement lenses.
it's on the outside. thanks for the tip, I'll try it

try to sand them with 1500 wet sand and then buff them with very fine compound

Well what i did i got rid of my stock f150 2002 and replaced them with some after market headlights i like them because they are one piece, and they have HALO's and projectors, with some L.E.D.S on the bottom of the lights they are pretty cheap also

The same thing happened to my moms headlights. she just took it to the dealership and they used a special cleaner on the headlights and now they look brand new. I have no idea what it was but you might want to try what she did.