To see correctly, yes you do.
we need convex lens in eyes as convex lens bulges out and thus focuses the outside light rays at a particular point in our eye, so then only we are able to see.
A 1300mm lens can see to infinity.
because the parts are really tinny that you cant see them without a microscope or a hand lens.. and it is impossible to see the parts of that make up matter visually...
When you see through a concave lens you see a magnified view of what you wish to see
A magnifying lens
a lens you can see through and a mirror reflects
no it is clear.
heyy x a lens help you see in the light
Cornea/lens.
See the link below for the formula of lens power.
A concave lens helps you see far if you're nearsighted and convex lenses help you see near if you're farsighted.
they both can see very far or very close and both can see things