If I remember right someone did a review of an optics enhancer or some such device and then it wound up re posted while back.
I think it may have been Mr Furious.
I searched with all the terms I could think of and can't seem to find the article or review.
I'm not sure if it was even something that would work for this application or not but I found it interesting.
Maybe someone can help me out and find it as my Google Fu it seems is apparently lacking right now.