Bobby 3/17/2010are the headlight lenses foggy or discolored you can try replacing the headlight assemblies if thats the case. Or they do make headlight assembly upgrade kits if you want to upgrade to a stronger headlight but they are expensive.
Backyard Mechanic Richard 4/1/2010Auto parts stores now sell lens polishing kits that removes most of the yellowing/foggy conditions that a 2002 car might have. They sell for anywhere from $12 to $25 and it takes about 5 minutes per lens to polish and then apply a protective coating. I did my 2000 Mazda 626 and it greatly improved the night vision without going to the expense of a whole lens replacement.
kromedepot 7/8/2012may sound crazy but it works sand the headlight with 800 grit paper then spray with a clear coat you can use clear spray paint but i recumend having a body shop do it