Question:
What is short-sightedness (myopia)? Explain with a ray diagram. This defect is corrected by which type of lens?
What is short-sightedness (myopia)? Explain with a ray diagram. This defect is corrected by which type of lens?
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Myopia is corrected using a concave lens, which helps in diverging light rays before they enter the eye.
Updated On: Nov 5, 2025
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Solution and Explanation
Myopia, or short-sightedness, is a vision defect where a person can see nearby objects clearly but distant objects appear blurred. This occurs when the eyeball is elongated, causing light to focus in front of the retina instead of on it. A concave lens is used to correct myopia by diverging the incoming light rays before they enter the eye, ensuring they focus correctly on the retina.
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