Air Optix Aqua versus BiofinityAir Optix Aqua from Alcon Inc. and Biofinity from CooperVision Inc. are high-performance monthly replaceable contact lenses using a silicone hydrogel material. Both lenses are approved for extended wear (6 nights / 7 days) as prescribed by your eye care practitioner.
Biofinity lets more oxygen pass through the lens to your eye, is slightly thinner than Air Optix Aqua and covers a broader prescription range (from -12.0D to +8.00D). The average daily cost of both lenses is in a similar range.

By the way, the two companies have released 'upgraded' versions of the two lenses: Biofinity Energys and Air Optix with Hydraglyde. A comparison can be found here.

Air Optix Aqua and Biofinity - Spec Sheets

AIR OPTIX AQUA

Biofinity

Product Image Air Optix Aqua Biofinity
Price Comparison

Lowest price found:

6 Pack: $29.85

Lowest price found:

6 Pack: $36.97

Manufacturer Alcon Inc. CooperVision, Inc.
part of
The Cooper Companies Inc.
Release Date 2008 2007
Prescription Parameters
Replacement Schedule Monthly Monthly
Wearing Details info Daily wear or
up to 6 nights extended wear
Daily wear or
up to 6 nights or
7 days extended wear
Sphere Powers +6.00D to -8.00D
(in 0.25 steps)
-8.50D to -10.00D
(in 0.5 steps)
-12.00D to +8.00D
(in 0.5 steps after +-6.00D)
Base Curves info 8.6 mm 8.6 mm
Diameters 14.2 mm 14.0 mm
Technical Parameters
FDA Group info V V
Lens Material Silicone hydrogel
(Lotrafilcon B)
Silicone hydrogel
(Comfilcon A)
Lens Design Aspherical Aspherical
Wetting Agents info Yes
- PVP
- PEG
None
% of Material 67% 52%
Water Content 33% 48%
Center Thickness info 0.08 mm 0.08 mm
Oxygen Transmission info 138 Dk/t 160 Dk/t
Modulus info 1.0 MPa 0.75 MPa
Other Features
Special Features info
  • TriComfort™ Technology
    High wettability through low contact angle.
    Permanent plasma treatment for a smooth surface.
  • SmartShield Technology
UV Blocking info No No
Dynamic Light Absorption info No No
Visibility Tint Yes
Light Blue
(VISITINT®)
Yes
(Sofblue®)
Inside-out Mark No No
Packaging, Pricing and Offers
Packaging Details 6 lenses per box,
each lens in a
foil-sealed plastic package containing phosphate buffered saline with (or without) 1% copolymer 845
6 lenses per box,
immersed in buffered 0.83% saline
Price Range info $30 - $70 (6 lenses)
$37 - $62 (6 lenses)
Cost per Day info $0.17 - $0.39 (6 lenses)
$0.21 - $0.34 (6 lenses)
Online Retailers info
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Special Deals

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Conclusion:

Biofinity covers a wider range of available powers than the Air Optix Aqua. Both lenses are available as toric as well as multifocal lenses.