Define astigmatism?

Asked by  | 18th Feb, 2011, 08:39: AM

Expert Answer:

Dear student
 
It is a type of defect in a lens. Due to it the lines in some direction are focussed less sharply than lines in other dimnesions.
 
Hope this helps.
Regards
Team
Topperlearning 

Answered by  | 18th Feb, 2011, 10:21: AM

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