Most severe vision loss is due to the diagnosis and treatment not being made until after extensive damage is done. (one of the main reasons to have yearly medical eye exams by an Eye MD). Second biggest cause is poor patient compliaance. There is a distressingly high number of people that stop their medicine, stop seeing an opthalmologist or do not use their medicine as prescribed or run out of meds regularily.
There is however the worse 3-5% of glaucoma cases that progress in spite if vigorous treatment (up to 4 different drops 5-8 times/day, selective laser trabeculoplasty and filtering surgery). One reason is that current research indicates that some damage that progresses is NOT due to pressure and we do not understand how this occurs and how to prevent it.
The odds are heavaily on your side that if you are compliant that your vision will last a lifetime. New drugs from the much (unfairly) criticized pharmaceutical industry are on the horizon.
JCH II MD
Thanks. Despite a wealth of information from Google, it's been hard to find even that much concerning what a reasonable hope is. (I was diagnosed on Tuesday, and I'm only starting to calm down slightly.)
I'm a bit puzzled my Dr. (a Glaucoma specialist) didn't volunteer what you just relayed. On the other hand, he was willing to wait 2-3 months to start eye drops if I wanted, and do another visual field/OCT first. I guess he knows that this early on 2-3 months isn't long enough to make a long-term difference, so perhaps he doesn't quite get/has forgotten after some number of years how scary this seems. (If I was 70, I wouldn't be so worried, since the progression is slow.) At 40, I need to last another good 30-40 years though...
Thanks again for the info. This bboard is a wonderful service.