two small pieces of special glass or plastic in a frame worn in front of the eyes to improve sight

a pair of glasses 一副眼镜

reading glasses 老花眼镜

Has anyone seen my glasses?

I usually wear contact lenses, but I sometimes wear glasses when my eyes are tired.

He wears glasses for reading.

I need new glasses - my vision has changed so much since I got this pair that I can barely read the menu.

See also: glass noun (FOR IMPROVING SIGHT)