Vitamin Mix (B6, B9, B12, And Choline) For Glaucoma Patients

Eligibility Criteria Inclusion Criteria: Patients with the following characteristics will be eligible for inclusion in the trial: * 18 years or older at the time of inclusion * Diagnosis of Primary Open-Angle Glaucoma (POAG), Normal Tension-Glaucoma (NTG) or Pseudoexfoliation Glaucoma (PEXG) in one or both eyes diagnosticed by an ophthalmologist. * Best corrected Snellen VA of 0.3 or better in the study eye(s) * Two or more reliable VF tests with less than 15% false positives Exclusion Criteria: Patients who meet any of the following criteria will be excluded from participation in the study: * Visual field damage worse than -16dB in the study eye(s) * Eye pressure greater than 35 mmHg in study eye(s) on either of two measurement occasions or a mean pressure of 30 mmHg over two occasions * Any disease affecting retinal function * Neurological or other non-glaucomatous conditions that may affect the visual field * Inability to perform visual field examination * Unwillingness to stop any intake of multivitamins or B vitamin substances * Known allergy or intolerance to B-vitamins * Previous eye surgery, except for uncomplicated cataract surgery * Pregnant or breastfeeding women * Women of childbearing potential who do not use reliable contraception * Any disease or condition likely to prevent long-term follow-up * Cancer diagnosis within the last 5 years (except treated squamous cell carcinoma) * History of liver disease or stomach ulcers * Inability to understand and speak Swedish or English