Strong evidencevitamin
Vitamin B12 for Eye Strain
Methylcobalamin supports optic nerve myelin sheath integrity and corneal nerve health. It modulates homocysteine levels that can damage retinal vasculature and may improve accommodative function of the ciliary muscle, reducing focusing fatigue.
How strong is the research?
Strong evidence
Based on a randomised controlled trial (RCT) — the gold standard for establishing cause and effect.
How much to take
1000 mcg
B12 supports optic nerve health and may reduce accommodative eye fatigue.
When to take it
Best taken: morning