Hi
I haven't treated anyone personally with my Bioptron light (www.bioptron.com) but I know of two people whose glaucoma pressure went down to 11% & 15% when using it. Save your pennies and invest in a light; it's great for all injuries and eye problems (cataracts too). The whole family can use it. Save some more and buy the colour set - find someone to advise you on the use of the individual colours.
Good luck