Bifocal

 
biofocal_imgBifocal Lenses contain two different prescriptions in the same lens.

The primary purpose of bifocals is to provide the optimal balance between distance vision and near vision focusing needs. Bifocal lenses are available with the reading segments in a variety of shapes and widths including sunglasses bifocal options. The most popular reading bifocal is the Flat-Top (also known as straight-top or D-segment), 28 millimeters wide. Corr Optical offers a number of options for the bifocal lens wearer.

 
 

How to view through a bifocal lens

 
Shapes of Bifocal Lenses

 
Availability in Bifocal
Index
ClearColorTypeAdditionPower Range
1.67 PlasticClearD281.00 to 3.00-15.00D/ +7.00D
1.60 PlasticClearC281.00 to 3.50&4.00-15.00D/ +7.00D
-8.00D/ +8.00D
1.60 PlasticClearD281.00 to 3.00-12.00D/ +8.00D
1.59 PolycarbonateClearD280.75 to 4.00-12.00D/ +9.00D
1.53 TrivexClearD281.00 to 3.50-8.00D/ +7.50D
1.50 CR 39ClearC280.75 to 3.50&4.00-12.00D/ +10.00D
1.50 CR 39ClearD280.75 to 4.00-8.00D/ +7.50D
1.50 CR 39ClearD350.75 to 3.50-7.00D/ +7.00D
1.50 CR 39ClearRT280.75 to 3.50-6.00D/ +7.50D
1.50 CR 39ClearExecutive/RT 241.00 to 3.00 

 

  Transitions

ClearColorTypeAdditionPower Range
1.50 CR 391.53 TrivexC28/ D281.00 to 3.00-8.00D/ +7.50D
1.50 CR 39GreyD350.75 to 4.00-6.00D/ +7.50D
1.53 TrivexGreyD281.00 to 3.00-8.00D/ +7.50D

 

 Polarised

ClearColorTypeAdditionPower Range
1.50 CR 39GreyD281.00 to 3.00-6.00D/ +6.00D
1.50 PolycarbonateGreyD280.75 to 3.50 & +4.00-8.00D/ +6.50D

 

Drivewear

ClearColorTypeAdditionPower Range
1.50 CR 39BrownD281.00 to 3.00-8.00D/ +7.50D

 

Sunlite

ClearColorTypeAdditionPower Range
1.50 CR 39GreyD281.00 to 3.00-6.00D/ +6.00D
 * Available upto 4cyl. only

 

Acclimates

ClearColorTypeAdditionPower Range
1.50 CR39Grey/ BrownD281.00 to 3.00-8.00D/ +7.50D

 

Mineral

ClearColorTypeAdditionPower Range
1.52 GlassWhiteD28/ C280.75to3.50-8.00D/ +6.00D
1.52 GlassPGX/ PBXD28/ C280.75to3.50-8.00D/ +6.00D
1.52 GlassWhiteRT 25/ RT280.75to3.50-6.00D/ +6.00D
1.52 GlassPGX/PBXRT28/ RT280.75to3.50-6.00D/ +6.00D
1.52 GlassWhiteExecutive1.00 to 3.00-5.25D/ +4.00D
1.52 GlassPGX/PBXExecutive1.00 to 3.00-5.250/ +4.00D
  MAX. +6.00 CYL.