A comparison of the silicone hydrogel lens Biofinity and its 10 years older sibling Proclear. Both lenses are monthly replaceable contact lenses manufactured by CooperVision. While Biofinity is a silicone hydrogel lens rolled-out in 2007, Proclear was introduced in 1997 with its base material being a non-ionic hydrogel. In more detail, it is composed of a polymer of 2-hydroxy-ethylmethacrylate and 2-metacryloloyoxyethyl phosphorylcholine which is cross-linked with ethylene glycol dimethacrylate.
Biofinity provides a much higher oxygen transmissibility value due to its unique silicone hydrogel material which translates into better breathability. In fact, Biofinity's Dk/t value is one of the highest Dk/t values we have seen in any silicone hydrogel lens in the market. To keep the lens and eye moist, Proclear was implemented with a Phosphorylcholine-based technolgoy called PC Technology, while Biofinity utilizes a new technology called Aquaform to overcome the hydrophobic nature of its base material.
In looking at various online retail sources, we calculated the cost-per-day of both lenses to be very similar. While Proclear must be removed overnight, Biofinity is approved for extended wear up to 6 consecutive nights (based on your eye doctor's approval). Both lenses are tinted blue from edge to edge for visibility purposes.
Biofinity versus Proclear: Specs Compared
|Price Comparison|| |
|Manufacturer|| CooperVision, Inc.|
The Cooper Companies Inc.
| CooperVision, Inc. |
The Cooper Companies Inc.
|Wearing Details|| Daily wear or|
up to 6 nights or
7 days extended wear
|Sphere Powers|| -12.00D to +8.00D|
(in 0.5 steps after +-6.00D)
| for 8.6 mm: -20.00D to +20.00D |
for 8.2 mm: Plano to -10.00D
(in 0.5 steps after -6.00D and +5.00D)
|Base Curves||8.6 mm|| 8.6 mm |
|Diameters||14.0 mm||14.2 mm|
|Lens Material|| Silicone hydrogel|
| Non-ionic hydrogel |
|% of Material||52%||38%|
|% of Water||48%||62%|
|Center Thickness||0.08 mm||0.065 mm|
|Oxygen Transmission||160 Dk/t||52 Dk/t|
|Modulus||0.75 MPa||0.4 MPa|
|Special Features|| |
|Dynamic Light Absorption||No||No|
|Visibility Tint|| Yes |
| Yes |
|Packaging, Pricing and Offers|
|Packaging Details|| 6 lenses per box,|
immersed in buffered 0.83% saline
| 6 lenses per box, |
immersed in buffered 0.9% saline
|Price Range|| $39 - $57 (6 lenses)|| $46 - $60 (6 lenses) |
|Cost per Day|| $0.22 - $0.32 (6 lenses)|| $0.25 - $0.33 (6 lenses) |
|Online Retailers|| |
Offer 1 - U.S.
Offer 2 - U.S.
Biofinity outshines Proclear on many of the crucial parameters that are indicators for good breathability, handling and end-of-day comfort. After all, Biofinity is a silicone hydrogel lens with one of the best Dk/t values that you can get today. Some contact lens wearers might still prefer Proclear as not everyone's eyes cope well with the silicone material.