I don't see anything really wrong there, but maybe I'm not noticing what you're talking about. The exterior plastic lens in your picture just looks dirty, possibly from hard water spots - have you tried cleaning it? If that's somehow on the inside, obviously that isn't right and you could probably get them replaced. If you're talking about the actual projector lens, they have fresnel lenses to soften the output cutoff lines, so they won't be perfectly clear. If your light output is fine, I wouldn't worry about it.