From a Visionary English Physicist, Self-Adjusting Lenses for the Poor

He has distributed about 30,000 spectacles. The U.S. Department of Defense bought 20,000 pairs to give away to poor people in Africa and Eastern Europe. Those glasses have a small U.S. flag and "From the American People" engraved in small print on one side of the frames. The World Bank and the British government have also helped fund his work.

"There are guys walking down the street in Angola with a smile on their face because for the first time since they were kids they can see their town," said Marine Maj. Kevin White.

When White, who is stationed at Fort Belvoir, Va., was in charge of a military humanitarian aid program in 2005, he read about Silver's glasses, met him and got approval to buy and distribute them. "I am really impressed with what he is doing," White said. "It's a noble cause."

Silver said there has been some resistance from the eyewear industry. Years ago, one vision company offered a "substantial amount of money" to him if he sold them his technology, but Silver said he declined because he had no assurance that it would be used to bring low-cost glasses to the poor.

He said the current business model for the industry that involves optometrists, opticians and labs making custom lenses and frames is to make "very high-quality, high-cost products for the developed world." He said his "lunatic's dream" is to say, "Hold on, half the world can't afford that."

His glasses correct nearsightedness and farsightedness but not astigmatism. Silver stressed they do not replace the need for people to go to an eye professional who can diagnose health problems such as glaucoma, diabetes and high blood pressure.

But Mehmood Khan, a business manager and activist who plans to help Silver distribute the glasses in India, said they will change the lives of many people who don't even realize they could see better: "These glasses help people get their eyes back. They are going to make a difference."

In his cozy home in Oxford, near the university where he has been for 26 years, the inventor talked about how Henry Ford wanted to make a car that everyone could afford and how he hopes to make eyeglasses accessible to everyone.

Near his dining room table he has displayed a patent he got from the U.S. government for his glasses, a project he has been working on for two decades.

He has some earlier, clunkier frames and lenses in a wooden cabinet in his home office, "his museum," as he calls it.

For one year, he wore a pair of his own glasses every day. Despite his age, he has never needed reading glasses, which he said might be "God's way of telling me I am doing something good."

A talkative man with a remarkable memory, Silver said that as the global financial crisis changes the way people live, maybe there won't be such a focus on making money and having the brightest students head into the world of finance.

"I feel people are saying, 'Hold on, there is some real work to do in life,' " he said, adding that maybe for his project, "the time has come."