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Dr. Cannabis

Glaucoma

Raised intraocular pressure. NASEM found limited evidence that cannabinoids are INEFFECTIVE.

Evidence of no benefitThe available evidence suggests cannabis or cannabinoids do not help with this.

What the evidence says

NASEM 2017: limited evidence that cannabinoids are INEFFECTIVE for improving intraocular pressure associated with glaucoma.

Glaucoma appears in a lot of older cannabis advocacy because THC does briefly lower intraocular pressure. The problem is duration: the effect lasts a few hours, and glaucoma requires round-the-clock pressure control.

NASEM concluded there is limited evidence that cannabinoids are ineffective for improving intraocular pressure associated with glaucoma.

Using cannabis instead of prescribed glaucoma treatment risks permanent vision loss.

We do not recommend cannabis for this

Rather than suggest a product profile, we are telling you the evidence points the other way. Talk to a clinician about options with better support.

Talk to a doctor if

  • • You have glaucoma — do not substitute cannabis for prescribed treatment
  • • You notice vision changes

Sources

  1. NASEM 2017, Committee Conclusions (summary PDF of all evidence-tier conclusions).Accessed 2026-08-15.