There are a great many people in the world that are blind, but they are not the only ones with vision problems. Many people that are not blind still have problems seeing clearly enough to function well in life. They need glasses to compensate for the problems with their visions. Many of these are easily corrected with the proper prescription. Unfortunately, there are a great number of people that cannot afford the cost of glasses and prescription lenses.
Many opticians offer a drop-off service for people that are buying new eye glasses. These people often have prescription glasses they no longer need. Rather than tossing them in the trash, the frames and lenses can be used to help people economically stressed that need prescription glasses. This assists people with correcting their vision so they can function in the world. A pair of glasses with the proper prescription can allow a person to see clearly enough to help themselves in other areas of their life.