The best home remedy for Glucoma is, without a doubt, marijuana. I realize in most states in the U.S. it is illigal to grow or use marijuana unless recommended by your medical provider.
In the old days it was no big deal to grow hemp for personal use. The American Indians and many cultures used marijuana for many home remedies, and to be honest, it was one of the best herbs to relieve pain, nausea and yes, eye pressure.
I would never recommend you do anything illegal. Most of all, I would never recommend you buy marijuana off of the streets, besides being illegal, you never know what kind of pesticides and additives could have been added to it. But I would recommend you talk to you medical provider about your Glucoma and the discomfort it is causing. Many states in the U.S. now allow medical providers to write prescriptions (assuming you live in the U.S.) for medical marjuana use.
I personally know of several people that have used medical marjuana for Glucoma, cancer, stomach ulcers, arthritis and many other medical reasons and there has always been positive results.
Some visitors to Grandma's Wisdom my be shocked at some advice I give to visitors, please know, I try to be as honest as I can with my research and personal experiences.
If anybody else has a home remedy for Glucoma or a viewpoint on this subject please feel free to join in.