N-acetylcarnosine for cataract and/or glaucoma ???

Has anyone tried Can-C eye drops (N-acetylcarnosine, or NAC) for cataract, and, if so, did it help?  The Russian scientist who developed the drops also hints that  NAC is also beneficial for glaucoma (results not yet published), and I read one testimonial claim that floaters went away along with the cataract.  Dr. Ritch discusses NAC in his complementary medicine article, and provides footnotes for the Russian research. ???

Richelle