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CGP EDU Academic Team
Published on: September 12, 2026
A person is suffering from the defect astigmatism. Its main reason is
Text Solution
Verified by ExpertsThe correct answer is:
C
Astigmatism is a common eye condition caused by an irregular shape of the cornea or lens.
Step 1: In a normal eye, the cornea and lens are perfectly spherical, allowing light rays to converge properly on the retina.
Step 2: In astigmatism, the cornea is more oval-shaped rather than spherical, which leads to light being refracted unevenly.
Step 3: This abnormal curvature causes blurred or distorted vision at different distances.
Therefore, the main reason for astigmatism is that the cornea is not spherical.
Step 1: In a normal eye, the cornea and lens are perfectly spherical, allowing light rays to converge properly on the retina.
Step 2: In astigmatism, the cornea is more oval-shaped rather than spherical, which leads to light being refracted unevenly.
Step 3: This abnormal curvature causes blurred or distorted vision at different distances.
Therefore, the main reason for astigmatism is that the cornea is not spherical.
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