why people have significant difference in the power of the two lenses they use even though both the eyes almost experience similar environments?

Question

why people have significant difference in the power of the two lenses they use even though both the eyes almost experience similar environments?

In: 15

Answer 1

The lenses in my eyes aren’t the same shape, so the lenses in my glasses have to fix different problems. People are mostly symmetrical but not perfect. The lenses (help) fix that.