lenses you wear directly on your eyes to help you see
contacts
a very difficult task that you can do only by making a great effort
struggle
perfect eyesight
20/20 vision
not clear
blurry
choose
pick out
see
make out
a message written by a doctor that tells people what medicine to take
prescription
unable to see things far away
short sighted / nearsighted
the plastic or metal structure that holds together a pair of glasses:
frames
have really poor vision
as blind as a bat
two small pieces of special glass or plastic in a frame worn in front of the eyes to improve sight:
glasses
see far-away things more clearly than things nearby
far sighted