Biofinity and PureVision 2 are monthly replaceable silicone hydrogel lenses. While PureVision is a daily-wear lens, Biofinity can be worn up to 7 days continuously based on your eye doctor's approval. Biofinity is slightly stiffer, but lets more oxygen through than the PureVision lenses. The cost is similar and typically ranges from $35 to $45 per box.
Biofinity |
PureVision2 |
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Product Image |
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Price Comparison | ||
Manufacturer | CooperVision, Inc. part of The Cooper Companies Inc. | Bausch & Lomb Inc. |
Release Date | 2007 | 2011 |
Prescription Parameters | ||
Replacement Schedule | Monthly | Monthly |
Wearing Details
|
Daily wear or up to 6 nights or 7 days extended wear | Daily wear or extended wear up to 30 days |
Sphere Powers | -12.00D to +8.00D (in 0.5 steps after +-6.00D) | +6.00 to -6.00D in 0.25 steps -6.00D to -12.00D in 0.5 steps |
Base Curves
|
8.6 mm | 8.6 mm |
Diameters | 14.0 mm | 14.0 mm |
Technical Parameters | ||
FDA Group
|
V | V |
Lens Material | Silicone hydrogel (Comfilcon A) | Silicone hydrogel (Balafilcon A) |
Lens Design | Aspherical | Aspherical |
Wetting Agents
|
None | None |
% of Material | 52% | 64% |
% of Water | 48% | 36% |
Center Thickness
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0.08 mm | 0.07 mm |
Oxygen Transmission
|
160 Dk/t | 130 Dk/t |
Modulus
|
0.75 MPa | 1.1 MPa |
Other Features | ||
Special Features
|
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UV Blocking
|
No | No |
Dynamic Light Absorption
|
No | No |
Visibility Tint | Yes (Sofblue®) | Yes (light blue) |
Inside-out Mark | No | Unknown |
Packaging, Pricing and Offers | ||
Packaging Details | 6 lenses per box, immersed in buffered 0.83% saline | 6 lenses per box, immersed in a poloxamine solution |
Price Range
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$34 - $57 (6 lenses) | $38 - $79 (6 lenses) |
Cost per Day
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$0.19 - $0.32 (6 lenses) | $0.21 - $0.44 (6 lenses) |
Online Retailers
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Special Deals Compare Prices | Special Deals Compare Prices |