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Medical professionals have warned that a restricted diet after a specific case can have dire consequences, in which a A teenager The United Kingdom lost its eyesight after only eating chips, potato chips and white bread.
The study, published by the University of Bristol, details the patient's very limited diet: He reportedly told doctors he only had Pringles potato chips, French fries, and processed ham sandwiches on white bread – and that since elementary school – he also said he avoided eating foods with specific textures.
The patient first visited at the age of 14 He was a doctor and said he was constantly tired, and he had a fairly normal BMI, and he did not show it externally signs of malnutrition. However, he had low levels of vitamin B12 and was anemic. He was treated with vitamin B12 injections and advised by his doctor about the diet.
One year later, he got deafness and blurred vision, but the doctors could not determine the cause. When he was 17, his visual impairment had worsened and he was completely blind. The case study reports that he was eventually diagnosed with nutritional optic neuropathy. This condition is most common in patients with bowel disease or taking medications that prevent the absorption of nutrients. In developing countries, it can also occur as a result of malnutrition.
In the case of the patient, diet-related optic neuropathy was due to serious deficiencies in vitamin B12, copper and selenium, decreased vitamin D levels, low bone mineral density, and high levels of zinc. Nutritional optic neuropathy is treatable if it is detected early enough, but once blindness occurs, it is irreversible.
"Our vision has such an impact on quality of life, education, employment, social interactions and mental health," said study director Denize Atan, ophthalmologist at Bristol Medical School and Bristol Eye Hospital. "In this case, it emphasizes the impact of diet on visual and physical health and the fact that calorie intake and BMI are not reliable indicators of nutritional status."