Biofinity by CooperVision is one of the most popular monthly contact lenses in Canada, and there is a good reason for that. I have fitted this lens on hundreds of patients over the years, and it consistently delivers reliable comfort and vision for the majority of wearers. But no contact lens is perfect for everyone, and this Biofinity review will cover both what it does well and where it falls short.
This is not sponsored by CooperVision. I am a licensed optician sharing what I observe clinically and what patients report back to me. If Biofinity is wrong for your eyes, I will tell you that too.
What Makes Biofinity Different
Biofinity is made from comfilcon A, a third-generation silicone hydrogel material. What sets it apart from earlier silicone hydrogels is CooperVision's Aquaform technology, which makes the lens material naturally hydrophilic (water-attracting) without needing a surface coating or treatment.
Many silicone hydrogel lenses (like the original Air Optix) used plasma surface treatments to make the lens wettable. These coatings can break down over the wear cycle, which is one reason some patients noticed declining comfort toward the end of the month. Biofinity's wettability is built into the material itself, so it does not degrade the same way.
The oxygen permeability (Dk/t) is 160, which is one of the highest among monthly lenses. For context, the minimum Dk/t recommended for safe daily wear is about 24, and for extended (overnight) wear it is about 87. Biofinity exceeds both by a wide margin, meaning your corneas get plenty of oxygen even during long wearing days.
The Full Biofinity Lineup
CooperVision makes several versions of Biofinity, and understanding the lineup helps you know which one you are getting and why.
| Product | Corrects | Replacement | Key Feature |
|---|---|---|---|
| Biofinity (sphere) | Nearsightedness, farsightedness | Monthly | The original. Available in a wide power range (-12.00 to +8.00). |
| Biofinity Toric | Astigmatism | Monthly | Optimized Toric Lens Geometry for rotational stability. Cylinder up to -2.25. |
| Biofinity Multifocal | Presbyopia (age-related near vision loss) | Monthly | Balanced Progressive Technology with D and N designs. |
| Biofinity XR | High prescriptions | Monthly | Extended range: -20.00 to +15.00 for patients outside standard parameters. |
| Biofinity XR Toric | High prescriptions with astigmatism | Monthly | Extended range toric for patients with both high Rx and significant astigmatism. |
| Biofinity Energys | Digital device fatigue | Monthly | Digital Zone Optics that reduces strain during screen time. A slight near-vision boost built in. |
The XR (extended range) options are particularly valuable. Many competing brands cap their sphere power at -8.00 or -10.00, which leaves patients with higher prescriptions scrambling for options. Biofinity XR goes to -20.00, which means almost no one is out of range.
Real-World Comfort: What 30 Days Actually Feels Like
Here is what I hear from patients across the full monthly wear cycle, and it matches what I observe at follow-up appointments.
| Week | Typical Patient Experience | Notes |
|---|---|---|
| Week 1 (Days 1-7) | Excellent comfort. Lens feels invisible. Clear vision. | Fresh lens, minimal deposits. Peak performance. |
| Week 2 (Days 8-14) | Still very comfortable. Slight end-of-day awareness for some. | Protein deposits beginning to accumulate. Good cleaning habits matter here. |
| Week 3 (Days 15-21) | Good comfort. Some patients notice dryness in the last 2-3 hours of wear. | Deposits and lipid buildup increasing. Rewetting drops help. |
| Week 4 (Days 22-30) | Adequate comfort. End-of-day dryness more common. Vision slightly less crisp. | Time for a fresh pair. Do not stretch beyond 30 days. |
The pattern I see most is that patients who clean their lenses well (especially with hydrogen peroxide systems like Clear Care) maintain better comfort through week 4 than patients who use multipurpose solution and rush through their cleaning routine. The lens material is excellent, but it still accumulates deposits over 30 days of wear.
Key takeaway: Biofinity comfort is genuinely excellent for weeks 1 and 2, good for week 3, and adequate for week 4. If you notice a significant comfort drop in week 3, upgrading your cleaning solution or switching to a hydrogen peroxide system often fixes it.
How Biofinity Compares to the Competition
Patients always want to know how Biofinity stacks up against the other big names. Here is my honest comparison based on fitting all of these lenses regularly.
| Feature | Biofinity | Acuvue Oasys (biweekly) | Air Optix plus HydraGlyde |
|---|---|---|---|
| Material | Comfilcon A | Senofilcon A | Lotrafilcon B |
| Dk/t (oxygen) | 160 | 147 | 138 |
| Water content | 48% | 38% | 33% |
| Replacement | Monthly | Biweekly | Monthly |
| UV blocking | No | Yes (Class 1) | No |
| Surface treatment | None needed (Aquaform) | Hydraclear Plus | SmartShield + HydraGlyde |
| Annual cost (approx CAD) | $300-400 | $350-500 | $300-400 |
Biofinity wins on oxygen permeability and water content. Acuvue Oasys wins on UV blocking and fresher-lens frequency. Air Optix wins on deposit resistance for patients in dusty or oily environments. None of these lenses is universally "the best." They are all excellent, and the right choice depends on your eyes, your environment, and your habits.
If you are exploring contact lens options, a trial with your optometrist is the only way to know which lens your eyes prefer.
Where Biofinity Falls Short
No lens is perfect, and Biofinity has limitations I think patients should know about.
No UV protection. Biofinity does not block UV light. Acuvue lenses do. If UV protection is important to you (and it should be), you still need sunglasses over your Biofinity contacts. This is not a dealbreaker, but it is worth noting.
Monthly replacement requires discipline. A fresh lens every day (dailies) eliminates deposit buildup entirely. Monthly lenses require you to actually clean and store them properly every night. Patients who cut corners on hygiene will have a worse experience than those who follow the protocol. If you know you are not great about cleaning, dailies are probably better for you.
End-of-month comfort decline. Even with good cleaning, the lens is 30 days old by the end of the cycle. For patients with dry eyes or heavy deposit production, the last week can be noticeably less comfortable. Some optometrists recommend replacing Biofinity every 3 weeks instead of 4 for these patients, though that increases the annual cost.
Handling tint is subtle. Biofinity's light blue handling tint is less visible than some competitors, which can make insertion and removal slightly harder for new contact lens wearers. Minor complaint, but I hear it.
Who I Recommend Biofinity For
Based on years of fitting, here is where Biofinity consistently shines.
- Budget-conscious patients who want a premium-quality lens without daily disposable pricing
- Long-wearing-hour patients who need a lens that stays comfortable for 12 to 14 hours
- High-prescription patients who need the extended parameter range (Biofinity XR)
- Patients with mild dry eyes who want a monthly option that manages dryness better than average
- Screen-heavy users who might benefit from the Biofinity Energys variant
I recommend something else for patients with significant dry eye disease (switch to dailies), patients who consistently forget to clean their lenses (switch to dailies), and patients who prioritize UV protection built into the lens (consider Acuvue).
Frequently Asked Questions
Can you sleep in Biofinity contacts?
Biofinity contacts are FDA-approved for up to 6 nights of extended wear. That said, most optometrists recommend against sleeping in any contact lens unless there is a specific reason to do so. Extended wear significantly increases your risk of corneal infection, even with a high-oxygen lens. If you occasionally fall asleep in them, the high Dk/t means your corneas are better protected than with most lenses. But making it a nightly habit is something I always advise against.
How long can you wear Biofinity contacts in a day?
Most patients comfortably wear Biofinity for 12 to 14 hours per day. Some push to 16 hours without issues, though your experience will depend on your tear film quality, environmental humidity, and screen time. If your eyes feel dry or irritated before 12 hours, that is a sign to remove them earlier. Your optometrist can help determine your personal safe wearing time based on your corneal health.
Is Biofinity better than Acuvue Oasys?
Both are excellent silicone hydrogel lenses, and I fit both regularly. Biofinity has higher oxygen transmission (Dk/t 160 vs 147) and higher water content. Acuvue Oasys has built-in UV blocking and a biweekly replacement schedule that some patients prefer. Comfort is comparable for most people. The best lens is the one that fits your specific eye shape, tear film, and lifestyle. Trial periods exist for exactly this reason.
Why are Biofinity contacts cheaper than dailies?
Simple math. You use 12 Biofinity lenses per year (6 per eye, replaced monthly) versus 730 daily disposable lenses per year. Even though each individual Biofinity lens costs more to manufacture, the total annual cost is significantly lower. The trade-off is that monthly lenses require nightly cleaning and storage, and they accumulate more protein and lipid deposits over their wear cycle than a fresh daily lens does.
Do Biofinity contacts work for dry eyes?
Biofinity is one of the better monthly lenses for mild to moderate dry eyes. The Aquaform material holds moisture naturally without surface coatings that can degrade, and the 48 percent water content strikes a good balance between comfort and oxygen permeability. For significant dry eye disease, daily disposable lenses are generally superior because a fresh lens every day eliminates deposit-related irritation entirely. Biofinity is a strong option for dry-eye-prone patients who prefer the cost advantages of monthly lenses.
What solution should I use with Biofinity contacts?
CooperVision recommends hydrogen peroxide systems (Clear Care, PeroxiClear) or compatible multipurpose solutions. Avoid solutions containing polyaminopropyl biguanide (PHMB) as they can interact poorly with some silicone hydrogel materials. Popular compatible options include Biotrue, OPTI-FREE PureMoist, and Clear Care Plus. If you are getting end-of-day dryness, switching from multipurpose to hydrogen peroxide cleaning often makes a noticeable difference in late-cycle comfort.
This article is for informational purposes only and does not constitute medical advice. Always consult your optometrist or ophthalmologist for diagnosis and treatment of eye conditions.