Astigmatism is due to-
Correct Answer: Irregularity of curvature of cornea > Irregularity of curvature of lens
Description: Ans. (d)Ref: Khurana optics 2/e, p. 79; Parsons 22/e, p. 52Most common cause of astigmatism is abnormalities of curvature of cornea. It is usually congenitalLenticular astigmatism is rare, seen in lenticonus (cone shaped lens), congenital tilling, oblique placement, traumatic subluxation of lens
Category:
Ophthalmology
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