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View article: Choosing the right investigation: Vitamin B12 deficiency optic neuropathy
Choosing the right investigation: Vitamin B12 deficiency optic neuropathy Open
Vitamin B12 deficiency can cause optic neuropathy, leading to progressive, painless vision loss. We report an 18-year-old vegetarian female with bilateral visual impairment despite normal serum B12 levels. Elevated methylmalonic acid confi…