Economic and social benefits of glasses for the blind

What you want to ask is what economic benefits the eyes of the blind have for the blind and solved the biggest problem of the blind.

Guide glasses are a kind of blind detection equipment specially for the temporarily blind people such as blind people and cataract patients. Integrated circuit ultrasonic guide glasses have been successfully developed and obtained national patents.

Guide glass is CDM-I type guide glass, which consists of electronic box and glass. Glasses are equipped with two ultrasonic transducers and an earplug machine. The transducer can transmit and receive reflected ultrasonic pulse waves forward, and the blind can perceive the obstacles in front through the sound changes emitted by headphones.