Question 14
Refraction and our eyes: The cornea and lens bend light to focus an image on the retina, which sends signals to the brain. If the eyeball is too short, light may focus behind the retina (hyperopia, or farsightedness); if too long, it may focus in front of the retina (myopia, or near-sightedness), causing blurred vision. Spectacle lenses can converge or diverge incoming rays.
How does refraction help to correct eye defects?
How does refraction help to correct eye defects?
