I have a year 2000 Camry. The wipers have never been changed yet.
While things look all fine in sunny days, in a rainy day, things looks smeared and fuzzy through the windshield glass. As if the glass has been slightly oil-treated. At the same time, I can see the same objects clearly through the side windows.
At nighttime, this becomes more of a problem. Here is a picture I took at an intersection. My hand might be a bit shaky as the engine is running, but you'll see what I see.