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The Web Ask World Optic

 
 
 

Polycarbonate Lenses

 
 
   

Polycarbonate, also known as poly, was invented by the aerospace industry for gear used on the Apollo space shuttle (helmet visors etc.). It is an impact resistant material that is highly recommended for rimless, safety glasses and sports eyewear. Poly should not chip or shatter and is 40 times more resistant than FDA requirements. However, once polycarbonate is scratched it may loose its impact resistance qualities.

Poly is a flexible material that needs a hard coat to protect it from easily scratching, but also has a natural UV protective nature. However, some patients may be hyper sensitive to the “chromatic aberration” poly has when using the peripheral viewing area (fish bowl effect).

 
     
     
           
           
   

Pros and Cons of a polycarbonate lens

         
Pros:    

Cons:

 

Impact resistant: 40x more than  FDA requirements. (bullet proof)

 

Abbe Value of 30. worst Abbe Value of all materials.

Cost effective (inexpensive) in comparison to other high index lenses

 

Some patients experience a fish bowl effect with peripheral view

Lightweight by nature.

   

 

Natural UV protection

     

Should not chip or shatter

     
             
 
       
       
   

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All literature on this website is strictly for reference. Specifications for individual needs may vary. Please consult with a doctor or licensed Optician to accommodate individual needs.

 
 
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