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Condition

Glaucoma

Glaucoma is a group of eye conditions in which the optic nerve is damaged, usually because pressure inside the eye is too high, and lost vision cannot be regained. Citicoline has the strongest evidence, rated moderate, and one small study of 60 people found better visual acuity; omega-3s are limited. That rests on one small study, and ginkgo, coenzyme Q10 and others have only limited research.

Sources: PMID 18929133

Supplements studied
4
Graded outcomes
4
Trials
4
People studied
168

Evidence by supplement

  • Strong
  • Moderate
  • Limited
  • Very limited

4 supplements

Cocoa Extract: outcomes studied for Glaucoma
GradeOutcomeEffectSizeStudiesPeopleStudies list
Blood Pressure

Small Improvement

Improves (the measure goes down)Small effect10 studies60 people
Intraocular PressureImproves (the measure goes up)60 people
Cannabis: outcomes studied for Glaucoma
GradeOutcomeEffectSizeStudiesPeopleStudies list
Blood Pressure

Mixed effect

1 study18 people

Studies that measured blood pressure

Heart RateImproves (the measure goes down)4 studies18 people

Studies that measured heart rate

and 1 more on the Cannabis page

Intraocular PressureImproves (the measure goes up)2 studies18 people

CDP-Choline

  • Visual acuity (VA): improves
  • Intraocular Pressure
CDP-Choline: outcomes studied for Glaucoma
GradeOutcomeEffectSizeStudiesPeopleStudies list
Visual acuity (VA)

Small Improvement

Improves (the measure goes up)Small effect1 study60 people

Studies that measured visual acuity (va)

Intraocular Pressure

No effect on intraocular pressure

NoneNo effect60 people

Ginkgo Biloba

  • Ocular Blood Flow: improves
Ginkgo Biloba: outcomes studied for Glaucoma
GradeOutcomeEffectSizeStudiesPeopleStudies list
Ocular Blood FlowImproves (the measure goes up)1 study30 people

Studies that measured ocular blood flow

Key findings

  • Blood PressureCocoa ExtractImproves (the measure goes down)
  • Visual acuity (VA)CDP-CholineImproves (the measure goes up)
  • Intraocular PressureCDP-Choline

The Glaucoma Supportive Care protocol

2 primary supplements · 7 supporting supplements

See the full protocol

Studies cited

19 studies from PubMed

  1. Short-term effects of Ginkgo biloba extract on peripapillary retinal blood flow in normal tension glaucomaKorean J Ophthalmol · PMID 21976939
  2. The short-term effect of flavonoid-rich dark chocolate on retinal vessel diameter in glaucoma patients and age-matched controlsActa Ophthalmol · PMID 24628966
  3. Postprandial effects of dark chocolate on portal hypertension in patients with cirrhosis: results of a phase 2, double-blind, randomized controlled trialAm J Clin Nutr · PMID 22811444
  4. Effect of cocoa products on blood pressure: systematic review and meta-analysis.Am J Hypertens · PMID 19910929
  5. Dark chocolate for children's blood pressure: randomised trialArch Dis Child · PMID 22685047
  6. Dark chocolate or tomato extract for prehypertension: a randomised controlled trialBMC Complement Altern Med · PMID 19583878
  7. Effect of cocoa on blood pressureCochrane Database Syst Rev · PMID 28439881
  8. Effect of dark chocolate on nitric oxide serum levels and blood pressure in prehypertension subjectsActa Med Indones · PMID 22156352
  9. Blood pressure and endothelial function in healthy, pregnant women after acute and daily consumption of flavanol-rich chocolate: a pilot, randomized controlled trialNutr J · PMID 23565841
  10. Characterisation of hypertensive patients with improved endothelial function after dark chocolate consumptionInt J Hypertens · PMID 23533716
  11. Safety and efficacy of cocoa flavanol intake in healthy adults: a randomized, controlled, double-masked trialAm J Clin Nutr · PMID 26537937
  12. Evidence of the neuroprotective role of citicoline in glaucoma patientsProg Brain Res · PMID 18929133
  13. Marijuana smoking and reduced pressure in human eyes: drug action or epiphenomenon?Invest Ophthalmol · PMID 1089090
  14. Effect of sublingual application of cannabinoids on intraocular pressure: a pilot studyJ Glaucoma · PMID 16988594
  15. Middle cerebral artery velocity during upright posture after marijuana smokingActa Psychiatr Scand · PMID 1529742
  16. The effects of smoking marihuana on physical performanceMed Sci Sports · PMID 1235156
  17. Regional cerebral blood flow after marijuana smokingJ Cereb Blood Flow Metab · PMID 1324250
  18. Effect of marihuana on intraocular and blood pressure in glaucomaOphthalmology · PMID 7053160
  19. Effects of acute marijuana smoking on pulse rate and mood states in womenPsychopharmacology · PMID 6438677