9 Signs And Symptoms Of A Vitamin B12 Deficiency

6. Blurred or Disturbed Vision

Untreated vitamin B12 deficiency may lead to more serious conditions such as damage to your nervous system. The optic nerve that leads to your eyes may be one of the parts affected. If your optic nerve suffers damage, it could interrupt the signals traveling from your eye to your brain, resulting in impaired vision. This kind of damage is called optic neuropathy. It can cause blurred or disturbed vision. This is not a common symptom, but it can usually be treated with vitamin B12 supplements.