astigmatism
blind
book
bookstore
college
concept
course
education
encyclopedia
eyeglasses
eyes
female
girl
glasses
hyperopia
illustration
impaired
isolated
knowledge
learning
lesson
library
literature
myopia
nearsighted
novel
optometry
perception
person
presbyopia
problem
pupil
read
school
schoolgirl
seminar
squint
standing
student
study
teacher
teenager
tense
tension
textbook
training
university
vision
woman