Reversible vision loss secondary to malnutrition in a woman with severe anorexia nervosa, purging type, and alcohol abuse

Objective: To report a case of severe reversible vision loss in a woman with a 7-year history of anorexia nervosa, purging type, alcohol abuse and a severely restricted, vitamin-deficient diet. Method: Psychiatric, ophthalmologic, and medical records were reviewed, and a literature search was performed on visual complications associated with anorexia nervosa and malnutrition. Discussion: Ophthalmologic complications of malnutrition are rare but include both oculomotor and visual sensory disturbances. Thiamine deficiency can cause both types of disorders. Vitamin B12 and folate deficiencies are typically associated with optic neuropathy. Clinicians treating eating disorders should be aware of the potential for vitamin deficiencies and associated visual loss in patients with anorexia nervosa. This case highlights the importance of a detailed dietary history to guide vitamin rehabilitation and to minimize or reverse nutritional visual loss.