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Acuvue Bifocal
http://www.eyetopics.com/articles/144/1/Acuvue-Bifocal.html
eyeTopics Review Editor
 
By eyeTopics Review Editor
Published on 03/23/2006
 
Acuvue Bifocal lenses are manufactured using the Pupil Intelligent Design to ensure that you won’t have to think about which part of the lens to use.

Acuvue Bifocal

Johnson and Johnson's Acuvue Bifocal contact lenses are 1-2 week disposable lenses designed to be worn by patients suffering from presbyopia.  Select patients are able to wear Acuvue Bifocal contacts continuously for up to one week.  Acuvue Bifocal lenses are manufactured using the Pupil Intelligent Design to ensure that you won't have to think about which part of the lens to use.  For added convenience and safety, Acuvue Bifocals come with a visible tint to assist you in locating your lenses in the solution and UV protection to keep harmful UV rays from entering your eye.


Lens Material
Etafilcon A, a copolymer of 2-hydroxyethyl methacrylate and methacrylic acid cross-linked with 1, 1, 1-trimethylol propane trimethacrylate and ethylene glycol dimethacrylate.                                               

Lens Parameters 
Base Curve:7.85mm to 10.00mm
Diameter:12.0mm to 15.0mm
Power Range:Daily Wear: -20.00D to +20.00D
 Extended Wear: -20.00D to +14.00D
Center Thickness:-3.00D: 0.075mm
                                                         
Lens Properties 
Specific Gravity:0.98 - 1.12
Refractive Index:1.40
Visible Light Transmission:85% minimum
Water Content:58%
Average UV Blocking:UVA: 86%
 UVB: 98%