how do eye contacts work?

have you ever wondered how contacts actually worked?
well first off lets begin with your eye.
Your eye is shaped a specific way. The light get enters the eye making you see. Being far visioned or near vision only means that the light is not being reflected correctly. So with the help of glasses , which are glass bent inti a specific degree to help bend the light that enters your eye, you are able to see perfectly whatever your handy cap is. The same goes with contact lenses there made of a specific substance that is not rough on the eye so it won't damage it ,but it is also durable . But instead of the light being refracted by a piece of glass is being bent by the out layer of the lens ,there for allowing you to see .