It’s questionable if anyone should ask for medical advice on the internet because of people like you, you’re obviously not an expert due to giving blatantly bad advice and I hope no one too naive to understand that these forums are open to anyone off the street takes your comment here seriously.
From the Glaucoma Foundation:
Advocates of medicinal marijuana cite evidence that hemp products can lower intraocular pressure (IOP) in people with glaucoma. However, these products are less effective than medicines prescribed by an eye doctor.
The high dose of marijuana necessary to produce a clinically relevant effect on IOP in the short term requires constant inhalation, as much as every three hours.
The number of significant side effects generated by long-term oral use of marijuana or long-term inhalation of marijuana smoke make marijuana a poor choice in the treatment of glaucoma, a chronic disease requiring proven and effective treatment.
Currently, marijuana is designated as a Schedule I drug (drugs which have a high potential for abuse and no medical application or proven therapeutic value).
The only marijuana currently approved at the Federal level for medical use is Marinol, a synthetic form of tetrahydrocannabinol (THC), the most active component of marijuana. It was developed as an antiemetic (an agent that reduces nausea used in chemotherapy treatments), which can be taken orally in capsule form. The effects of Marinol on glaucoma are not impressive.
And from a doctor poster here:
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.