I've used Museum Glass extensively, which is a type of Tru-Vue glass. It is very expensive. I only use it with cotton mat papers. Since cotton mat papers don't have their own reflection to start with, the Museum glass works wonders. When looking straight at a photo printed on cotton mat paper, and framed with Museum Glass, it looks like their is no glass at all. Many people comment on that, and ask why it appears that there is no glass.
I also have several older high gloss cibachrome photos framed with Museum Glass. In those cases I see a clear reflection, but what I am seeing is not the reflection of the glass but rather the photo paper itself.
IMHO Museum Glass is worth it if you print with cotton mat paper, but a waste of money on any photo paper that has its own glare or reflection.
When I last investigated this, I looked very carefully at sand-blasted (frosted) regular non-glare glass, comparing it to regular glass -- with a single mat between the photo and the glass. I could not see any difference with regards to seeing detail in the photo. The critical issue is to only use one mat. If you use two layers of mats, as in dual color double mat, then non-glare frosted glass WILL obscure detail, because the frosted glass has been raised too high above the photo. The difference of two mats rather than only one is enough to make a difference.
IYou should look at non-glare frosted glass with a single mat in framing store and compare it to regular glass. I doubt you'll see a difference up close.
But non-glare will still have a reflection from a distance -- it is just a frosted reflection -- and is not up to the standard of Museum Glass.
Finally, if you printing with photo papers, be sure to place them between regular paper or tissue paper for at least several days. Photo papers and their inks "out gas" and the out-gassing will fog glass if framed immediately after printing. I leave prints between regular or tissue paper for about a week to play it safe. I don't know if this applies to cotton papers or not, as I learned about that from the Epson web site, and if memory serves, they only referenced the problem with photo papers. But I do it with both types of prints just to play it safe.
If you have been framing photo paper immediately after printing, and have gradually noticed the problem, take the frames apart and see if a film of out-gassing has formed on the inside of the glass. The problem is very real -- when I interleave with tissue paper, the paper literally becomes quite wavy as it absorbs the gas from the ink.
Hope that helps.
