Thiamine deficiency may be one of the many causes of
blurry vision. Severe
thiamine deficiency can cause swelling of the optic nerve, inducing optic neuropathy. This can result in
blurry, or even loss of,
vision. Multiple documented cases have linked
blurry vision and
vision loss to severe
thiamine deficiency.Acute
thiamine deficiency (Wernike's encephalopathy)
can be
cured with 50mg
thiamine a day until normal eating resumes. Chronic
thiamine deficiency is not curable and
can result in a particular type of brain syndrome called Korsakoff's psychosis.