How did eyeglasses change the world?

it changed the world by helping people improve/help their eyesight, so they can see better. also, because of how many people use them & how popular they are today. they have grown into a giant thing. Katherine Blodgett made the eyeglasses that we use today; it is more modern than others. The eyeglasses she made were non-reflective! So, it didn't glare. Which was a good thing. And, plus, without them, half of the people on this Earth wouldn't see as clearly as other people. :)