Yes. The lens in glasses are the same. If you ever take off your glasses and hold them away you can still see through them.
Have your ever burned ants with a magnify glass or try to start a fire. Well, glasses do the same thing.
Glasses have a special magnification for each person. For me, I can not see far away, but I can see close. The lens are set at a higher magnification than reading glasses because what I need to see is farther away.