Illustrated · 1 min
How do glasses work?
Glasses people wear for conditions like nearsightedness and farsightedness contain corrective lenses.
What does a corrective lens do?
-refracts and focuses light
-creates virtual images --> brings rays to a place that eye can focus
Explanation of process of how a lens helps the eye focus an image
The blue rays indicate corrected focus and red rays show uncorrected focus. The concave lens is used to help people with myopia (nearsighted) while the convex lens is used to help people with hyperopia (farsighted).
