DR TCB, I caught up with my cousin Delores. She was off visiting with her son for several days. Here's what she told me:
She's on the Bausch & Lomb AREDS 2 program (Age-related Eye Disease Study, which was funded by NIH). It's for prevention of macular degeneration. I had thought it was for her glaucoma. B&L has three or more supplements for eye health that can be purhased over-the-counter. Each is based on the AREDS study, but with different formulas. The reviews I read were very good; most people saw vision improvement quickly.
For glaucoma, she has drops for her eyes, which are used preventively. She urges you to ask your eye doctor what your pressures are, rather than settling for an "Everything's fine" response. She's had glaucoma for many years and I don't recall her mentioning that's it's gotten any worse, but I do think it's best to take it seriously and take care of your eyes.