Teen goes blind and deaf after living off chips, sausages and crisps for 10 years

Teen goes blind and deaf after living off chips, sausages and crisps for 10 years


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A teenage boy went blind and partially deaf after living off a diet of chips, bangers and crisps for a past decade.

The British boy, who has remained anonymous, had such a diet he suffered from a condition normally only seen in malnourished third world children.

His is believed to be the first case of its kind in the UK.

The 17 year-old had only eaten chips, Pringles, sausages, processed ham and white bread since primary school, telling doctors he did not like the “texture” of fruit and vegetables.

Dr Denize Atan, who works f or the University Hospitals Bristol NHS Foundation Trust and wrote about the boy’s case, said: “He had a daily portion of fries from the local fish and chip shop and snacked on Pringles, white bread, processed ham slices and sausage.”

Pringles formed a major part of the teenager’s diet

The shocking lack of vitamins damaged his optic nerve, which connects the eye to the brain.

He was found to have a condition called nutritional optic neuropathy (NON) – usually only seen countries where access to food is restricted.

Dr Atan said the youngster’s blindness was caused by junk food and that he was suffering from a rare eating illness known as avoidant-restrictive food intake disorder or AFRID for short.

Sufferers become sensitive to the taste, texture, smell or appearance of certain types of food.

Some can only eat them at a certain temperature.

The unnamed patient, from the West Country, also developed hearing loss and bone weakness.

French fries were also a weakness of the boy

Eating too much sugar and carbohydrates in processed food can damage the ears.

Dr Atan said: “The conditions remained undiagnosed for several years.”

The boy was blind by the time he reached 17, leaving experts at Bristol Eye Hospital mystified.

While NON can run in families, there were no hereditary signs found in the boy.

However, he was deficient in vitamin B 12 which is found in offal, milk, fish and eggs, prompting doctors to carry out further investigations into his diet.

Once drinking, smoking and drug taking were ruled out as possible causes, and his height and BMI had been judged normal, the medics landed on diet as the likely reason for his illness .

Doctors eventually realized the teen’s diet must be behind his deteriorating eyesight

Dr Atan said: “However, the patient confessed that, since elementary school, he would not eat certain textures of food.”

He had first been taken to his GP three years earlier, when he was 14, complaining of tiredness.

Aside from being labeled a “fussy eater”, he was otherwise well and took no medications.

Blood tests showed he had low levels of B 12 which caused fatigue, leading to treatment including vitamin injections and diet advice.

The intervention had little effect on the teen, whose hearing and sight began to deteriorate when he was 15.

Following two years of progressive loss his visual sharpness was ju ST 20 / 200 and he was diagnosed with NON.

Normal vision is 20 / 20, which means you can read an eye chart at 20 Feet.

While delicious, crisps do not provide all the nutrition required for a healthy diet

To be considered legally blind, it needs to be 20 / 200 or worse.

The boy lost nerve fibers in the retina which essentially ruined his central visual field.

Dr Atan said: “Junk foods are nutritionally poor but energy-dense and cheap.

“Hence, high-energy diets correlate with high BMI, low socioeconomic status and poor health.

“‘Fussy eating’ that is restricted to junk foods and causes multiple nutritional deficiencies is an eating disorder.

“Avoidant-restrictive food intake disorder (ARFID) is a relatively new diagnostic entity, but unlike anorexia nervosa, it is not driven by weight or shape concerns.

“Onset is in middle childhood, with lack of interest in food, heightened sensitivity to food textures, and fear of the consequences of eating.

teenager’s eyesight was bad enough for him to be considered legally blind (stock photo)

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“As in this patient, BMI is often normal.”

NON is potentially reversible if caught early.

But if left untreated, it leads to permanent blindness.

Reporting the case in Annals of Internal Medicine, the University Hospitals Bristol NHS Foundation Trust doctors said it is well known junk food increases the risk of poor cardiovascular health, obesity and cancer.

But poor nutrition can also permanently damage the nervous system – particularly

Doctors need to be aware of the “visual complications of a diet restricted to junk food,” they said.

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