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  • A person may suffer from both myopia and hypermetropia defects. (a) What is this condition called ? (b) When does it happen ? (c) Name the type of lens often required by the persons suffering from this defect. Draw labelle

A person may suffer from both myopia and hypermetropia defects.

(a) What is this condition called ?

(b) When does it happen ?

(c) Name the type of lens often required by the persons suffering from this defect. Draw labelled diagram of such lenses.

 

 

 

 
 
 
 
 

Answers (1)

(a) Tthis condition is called Presbyopia

(b) It happens when Gradual weakening of the ciliary muscles of the eye/ diminishing flexibility of the eye lens takes place 

(c) Type of lens often required by the persons suffering from this defect is Bifocal lens. 

Diagram,

 

Posted by

Safeer PP

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