Question Detail
Question
Astigmatism is a vision defect that causes blurred vision due to what specific characteristic of the eye?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The text clearly defines astigmatism: 'Astigmatism refers to a defect in which the surface of the cornea is not spherical but has a somewhat distorted shape.'
Hint
The name 'astigmatism' itself relates to a point not being a point (stigma).