Uncategories 3 things which affect the amount of astigmatic error surrounding the progressive corridor and reading area of the PALs

3 things which affect the amount of astigmatic error surrounding the progressive corridor and reading area of the PALs

3 things which affect the amount of astigmatic error surrounding the progressive corridor and reading area of the PALs



Answer:


  • Width of the progressive corridor 
  • Width of the reading area
  • ADD power


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