19 Unmissable Signs You're Running Low on Thiamine

2. Blurry Vision

It is important if a patient experiences blurry vision, and there are other contributing factors, that they have their thiamine levels checked. A severe thiamine deficiency can cause the optic nerve to swell, which can cause problems with the patient's vision, such as blurriness, and can even result in the loss of vision. However, there is a significant chance vision problems will lessen when the thiamine deficiency is corrected. Vision issues such as blurry vision can also be linked to problems in the brain because the thiamine deficiency can affect the nerves and other parts of the brain.