Vision impairment is a common problem in large parts of Asia, Africa and Latin America. It has a serious effect on economies. One solution: providing eye glasses. But it turns out that can be tricky.
Copyright 2024 NPR
Vision impairment is a common problem in large parts of Asia, Africa and Latin America. It has a serious effect on economies. One solution: providing eye glasses. But it turns out that can be tricky.
Copyright 2024 NPR