In Nepal, surgeon runs free treatment camps for impoverished blind people

<p>Nepal has one of the world's highest rates of cataracts and subsequent blindness, with devastating consequences for the country's poor subsistence farmers. But one surgeon has been working to change that, running treatment camps for years in remote parts of the country. Now, with fresh funding from an ex-convict-turned-tech multimillionaire, he's able to perform the life-changing surgery on ever more people and has ambitious plans. We take a closer look.</p>