Yes, you can purchase anti-glare sprays and coats for things like TV's and eye glasses.
Is it possible to apply a coating to glass to make it less/non-reflective?
You might try this one that Amazon sells but I think most glass and art shops carry different ones. The reviews on most are fair at at best.
Glare Buster - Anti-Glare Reflective Coating for Picture Frames, 6 oz. Aerosol can (PF)