A comparison of ACUVUE OASYS® for ASTIGMATISM and AIR OPTIX for ASTIGMATISM, two time-tested toric lenses.

Acuvue Oasys for Astigmatism versus Air Optix for Astigmatism

For patients with astigmatism, Johnson and Johnson Vision Care is offering the bi-weekly disposable ACUVUE OASYS® for Astigmatism. Alcon offers the monthly replaceable Air Optix for Astigmatism, a slightly thicker lens with an aspherical design (an aspherical lens design reduces spherical aberration and halos). To keep the lens in place, ACUVUE OASYS® for Astigmatism features a unique blink stabilizing design with four zones of stability, while Air Optix achieves this with their PRECISION BALANCE 8|4 Design. Water content and oxygen transmission are two parameters that impact the wearing comfort, and - as they contradict each other - manufacturers try to find the right balance. While the water content of ACUVUE OASYS® is 38%, Air Optix for Astigmatism's initial water content is 33%, so they are both quite similar. Johnson and Johnson Vision Care adds Polyvinylpyrrolidone (PVP) to the lens, a popular wetting agent found in many lenses today. In addition, ACUVUE OASYS® for Astigmatism comes with Class 1 UVA and UVB blocking, a feature not found in the Air Optix lens.

ACUVUE OASYS® for ASTIGMATISM and Air Optix for Astigmatism - Spec Sheets

 
ACUVUE OASYS® for ASTIGMATISM
AIR OPTIX for ASTIGMATISM
Product Image Acuvue Oasys for Astigmatism Air Optix for Astigmatism
Manufacturer Johnson & Johnson Vision Care, Inc. Alcon Laboratories, Inc.
a Novartis company
Release Date June 2008 2007
Prescription Parameters
Replacement Schedule Two weeks Monthly
Wearing Details Daily wear - replace every two weeks.
Extended wear up to six nights/seven days - replace every seven days.
Daily wear or
up to 6 nights extended wear
Available Sphere Powers -6.00 to +6.00 in 0.25D steps
-6.50 to -9.00 in 0.50D steps
+6.00D to -6.00D
in 0.25 steps
-6.50D to -10.00D
in 0.50 steps
Available Cylinders -0.75D, -1.25D, -1.75D, -2.25D and -2.75D -0.75D, -1.25D, -1.75D and -2.25D
Available Axes Full circle in 10° steps Full circle in 10° steps
Available Base Curves 8.6mm 8.7mm
Available Diameters 14.5mm 14.5mm
Technical Parameters
Lens Material Silicone hydrogel
(Senofilcon A)
Silicone hydrogel
(Lotrafilcon B)
Lens Type Spherical Aspherical
Wetting Agent Yes
- PVP
Unknown
% of Material 62% 67%
% of Water 38% 33%
Center Thickness 0.08mm 0.102mm
Oxygen Transmission 129.3 Dk/t 108 Dk/t
Modulus Unknown Unknown
Other Features
Special Features Internal wetting agent Polyvinyl pyrrolidone (PVP) using HYDRACLEAR® PLUS technology.
BLINK STABILIZED™ lens design with four zones of stability.
PRECISION BALANCE 8|4™ Lens Design.
Permanent plasma treatment for a smooth surface.
UV Blocking Class 1
96.1% UVA
99.9% UVB
Unknown
Dynamic Light Absorption No No
Visibility Tint Yes
(blue)
Yes
(blue)
Inside-out Mark No No
Packaging, Pricing and Ratings
Packaging Details 6 lenses per box,
each lens in a foil-sealed plastic package
6 lenses per box,
each lens in a
foil-sealed plastic package
Online Retail Price $40 - $50 $40 - $65
Cost per Day $0.44 - $0.55 $0.22 - $0.36
Consumer Rating ( 35 Votes ) ( 24 Votes )
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To sum it all up

The highlights for ACUVUE OASYS® for Astigmatism are a blink-stabilizing design, UV blocking, and a somewhat higher oxygen transmission value. Air Optix for Astigmatism is slightly cheaper and features an aspherical lens design.