Blurry vision

A thiamine deficiency might impair the optic nerve in your eyes because of the role thiamine plays in maintaining healthy nerves. This disorder is caused by swelling of the eye's nerves, which eventually causes Blurry vision, impaired vision, and blindness. Optic nerve injury, if left untreated, can lead to visual loss.

Supplementation to address thiamine deficiency has been proven to dramatically enhance vision in these cases in certain limited investigations. Researchers discovered that a thiamine compound was beneficial in reducing alcohol-induced visual nerve damage in animals. Human studies, on the other hand, are "case reports" which means they focused on a single person. Furthermore, the findings of animal studies do not necessarily translate to human health.