(TheDrinksBusiness) - A man in New Zealand who went blind after drinking vodka regained his sight after doctors gave him whisky. It was Homer Simpson who said: “To alcohol, the cause of, and solution to, all life’s problems”, and that was certainly true for Denis Duthie, 65, from Taranaki on New Zealand’s North Island. Duthie, a catering tutor, was celebrating his 50th wedding anniversary by drinking some vodka, which had been given to him by some of his students. But the drink reacted with his diabetes medication and Duthie explained that suddenly everything went black.