Pot is a crappy drug for treatment of elevated intra-ocular pressure. It needs to be dosed regularly every 2 to 3 hours, around the clock, to deliver enough lowering of the pressure to reduce the risk of vision loss. There are FAR FAR better ophthalmic drops on the market which are more effective and may be used once or twice a day. And you can drive and operate heavy machinery while using them, too. With less weight gain.
Pills, tablets and films which dissolve quickly and completely on the tongue, liquid drops which are also absorbed via the tongue and gums, suppositories. I oversee the medical care at a hospice, and our patients have not had problems taking these quick-dissolving anti-nausea drugs.
If smoking or eating the marijuana plant is shown to be superior to other modalities for treating a significant condition, I’ll support it. Making a billion dollar industry co-opting physicians into “prescribing” the stuff without such evidence is detrimental to patient health and the medical profession.