In the past 30 years, Sanduk Ruit has personally restored the sight of more than 100,000 people across Asia and Africa, CNN reports. Ruit has taught his technique to countless other eye surgeons across the world, including places as isolated as North Korea.
It takes Ruit about five minutes to change someone's life.
"In that time, the Nepalese doctor can make a small incision in his patient's eye, remove the cloudy cataract impairing her vision and replace it with an inexpensive artificial lens.
"'Some of our younger surgeons even do it faster than that,' Ruit told CNN.
"For many patients, it's the first time they've seen in years, if not decades."
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