Disturbed or blurred vision can also occur as a result of a Vitamin B12 deficiency. This happens when the deficiency causes damage to the optic nerve that leads to your eyes. The nervous signal that travels from the eye to the brain is disturbed due to this damage, leading to impaired vision.

Can vitamin B12 cause vision problems?

Vitamin B12 (also known as cobalamin) is an essential vitamin for neurological function. Vitamin B12 deficiency optic neuropathy is a rare complication of this deficiency that results in progressive, bilateral, painless vision loss that is often associated with reduced color vision and central or cecocentral scotomas.

Does vitamin B affect your eyes?

Symptoms of Vitamin B Deficiencies

Vitamin B2, B3, and B6 deficiencies are associated with dry eyes and eye infections in the front of the eye. Vitamin B12 deficiency is associated with pernicious anemia and may cause retinal bleeding, destruction of nerve tissue, and lead to permanent vision loss.