billym - thank you for this question. I love this question. I used to take more vitamins than probably any person on this planet. I have never met a person who took as many vitamins as I did. After I was diagnosed with glaucoma, I researched extensively and created what I thought was the absolute best, state of the art, second-to-none vitamin program for reducing my intraocular pressure (and helping my vision and optic nerve too). I did extensive intraocular pressure research on this vitamin program and many variants of it. After a lot of work (and a lot of money) I found that none of the supplements had any effect on my intraocular pressure.
My own conclusion is that vitamins are unlikely to reduce intraocular pressure in any meaningful manner. I know there is some (just a little) research out there that indicates certain vitamins might reduce eye pressure. I think the reality of that actually happening for most people is about nil. I haven't (yet) heard from anyone who had compelling data to support any benefit on eye pressure from taking vitamins.
In the process of all this research, I did find out how to reduce my own intraocular pressure. The secret is explained in several posts on my blog. Here is a good one: http://fiteyes.com/blogs/dave/2008/06/05/stress-and-eye-pressure-solving-the-equation.
I think people would be extremely pleased if they found a vitamin that would reduce intraocular pressure by 5 mmHg after a few months of use. In contrast to this, through techniques of consciousness (I use Serene Impulse) and managing my emotions, I can reduce my eye pressure by 5 mmHg in less than a minute.
Nothing - no vitamin, no drug, no exercise, no nothing -- affects intraocular pressure as quickly and as profoundly as our state of consciousness and our emotions. Master your consciousness and your emotions and you will have mastered your eye pressure.
Then follow a healthy lifestyle and eat well, and you have a chance of reversing any optic nerve damage (if you have any). The role of vitamins in this program is very small. Traditional herbal compounds may play a slightly more important role. But the mind and emotions are king when it comes to intraocular pressure.
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