Why do some people need glasses?
Show answer & explanation
Answer: Eye shape affects focus
Eyes wear out from use — Wrong. Eyes don't wear out like machines. Vision problems are usually about eye shape or lens flexibility.
Eye shape affects focus ✓ — Correct! If your eyeball is too long, you're nearsighted. Too short, you're farsighted. Glasses bend light to compensate, focusing images correctly on your retina. The lens shape prescription corrects your specific eye shape!
Weak eye muscles — Wrong. Most vision problems aren't muscle weakness. They're about how the eye focuses light.