AIR OPTIX for ASTIGMATISM vs PureVision2 for Astigmatism

AIR OPTIX for ASTIGMATISM		PureVision2 for Astigmatism
Product Image
Manufacturer	Alcon Inc.	Bausch & Lomb Inc.
Release Date	2007	2011
Prescription Parameters
Replacement Schedule	Monthly	Monthly
Wearing Details	Daily wear or up to 6 nights extended wear	Daily wear or extended wear up to 30 days
Sphere Powers	+6.00D to -6.00D in 0.25 steps -6.50D to -10.00D in 0.50 steps	-9.00D to -6.00D in 0.5 steps -6.00D to +6.00D in 0.25 steps
Cylinders	-0.75D, -1.25D, -1.75D and -2.25D	–0.75D, –1.25D, –1.75D, -2.25D
Axes	Full circle in 10° steps	10°-180° in 10° steps
Base Curves	8.7 mm	8.9 mm
Diameters	14.5 mm	14.5 mm optic zone: 8.0 mm
Technical Parameters
FDA Group	V-C	V
Lens Material	Silicone hydrogel (Lotrafilcon B)	Silicone hydrogel (Balafilcon A)
Lens Type	Aspherical	Aspherical
Wetting Agent	Unknown	None
% of Material	67%	64%
% of Water	33%	36%
Center Thickness	0.102 mm	0.1 mm
Oxygen Transmission	108 Dk/t	91 Dk/t
Modulus	1.0 MPa	1.1 MPa
Other Features
Special Features	PRECISION BALANCE 8|4™ Lens Design. Permanent plasma treatment for a smooth surface.	- High Definition Optics - for reduced halos and glare. - ComfortMoist Technology - for initial and overall comfort. - Auto Align Design with hybrid ballasting - for better stability and orientation.
UV Blocking	No	No
Dynamic Light Absorption	No	No
Visibility Tint	Yes Light Blue (VISITINT®)	Yes (light blue)
Inside-out Mark	No	Unknown
Packaging, Pricing and Offers
Packaging Details	6 lenses per box, each lens in a foil-sealed plastic package	6 lenses per box, immersed in a poloxamine solution
Price Range	$40 - $65	$47 - $65
Cost per Day	$0.22 - $0.36	$0.26 - $0.36
Online Retailers (U.S., Canada, U.K.)	Special Deals	Special Deals

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