Short-sightedness occurs because the eyeball is slightly too long. Where does the eye focus light from a distant object?
Question 1 Report
Short-sightedness occurs because the eyeball is slightly too long. Where does the eye focus light from a distant object?
Answer Details
In a short-sighted eye, the eyeball is too long from front to back. Parallel light from a distant object is brought to a focus in front of the retina, rather than on it. The light rays then diverge again before reaching the retina, producing a blurred image. Near objects can still be focused because diverging rays from close objects are converged to a focus further back, reaching the retina correctly. The correction uses a diverging lens to spread the light before it enters the eye.
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