A 12-year-old Massachusetts boy has tragically lost his eyesight to a nutrient-poor junk food diet that caused his optic nerves to atrophy beyond any hope of reversal.

The New England Journal of Medicine recently documented the case of a 12-year-old boy suffering from autism who ultimately went blind because of a junk food diet based mostly on burgers, fries, ranch dressing, donuts, and boxes of sugary juice. The boy had been diagnosed with autism and suffered from an extreme phobia of certain food textures, so his parents found it impossible to introduce vital nutrients into his diet. Earlier this year, the unnamed boy began experiencing vision problems in the hours of the morning and in the evening, but his eyesight was fairly normal during the day. However, his vision started degrading at a rapid pace, and in six weeks’ time he could only move around if his parents helped him navigate obstacles. Then, one night, he woke up screaming that he couldn’t see.