Currency
Couldn't load pickup availability
We offer a 365-day return policy for all new, unused, and unopened products. If you are not completely satisfied with your purchase, you may return the item within 365 days of delivery to receive a full refund.
In cases where the return is due to an error on our part—such as receiving an incorrect or defective item— we will also cover the return shipping costs.
Once your return has been handed over to the return carrier, you can expect your refund to be processed within four weeks, although it may often be completed sooner. The estimated timeline includes:
To initiate a return, please contact our customer service team by phone at +44 7426 501445 or via email at help@contactlens365.com. You will receive an email confirmation once your return has been received and processed.
CooperVision's reliable two-week hydrogel lens — non-ionic efrofilcon A material resists protein deposits and Balanced Progressive™ Technology improves low-light vision quality.
CooperVision Biomedics 55 Evolution 6 Pack is a proven, cost-effective two-week replacement hydrogel contact lens available at contactlens365.com. Built on efrofilcon A — a non-ionic hydrogel with 55% water content — the Biomedics 55 Evolution offers a balanced combination of optical performance, deposit resistance, and value that has made it a long-standing choice for wearers seeking reliable fortnightly replacement without premium silicone hydrogel pricing.
The non-ionic character of efrofilcon A is a genuine practical advantage in the two-week replacement context. Ionic hydrogel materials carry a net negative charge that attracts positively charged tear proteins — particularly lysozyme, which is abundant in the human tear film and is one of the primary contributors to the "haze" and discomfort that characterise deposit-laden lenses in week two of wear. Non-ionic polymers do not carry this attraction, meaning Biomedics 55 Evolution accumulates protein deposits more slowly and retains better optical clarity and surface comfort through the full fortnightly replacement cycle.
Balanced Progressive™ Technology gives Biomedics 55 Evolution a measurable optical advantage over standard spherical lens designs. The aspheric front surface is designed to reduce spherical aberration — the optical distortion that causes haloes, reduced contrast sensitivity, and diminished low-light visual performance in conventional spherical lenses. The practical benefit is most pronounced during night driving and in dim environments where pupil dilation increases the impact of spherical aberration on visual quality.
🔬 Non-ionic efrofilcon A resists lysozyme deposition better than ionic hydrogels — maintaining comfort and clarity through both weeks of the replacement cycle. Balanced Progressive™ Technology's aspheric design improves low-light vision quality beyond standard spherical lens designs.
| Parameter | Value |
|---|---|
| Material | Efrofilcon A (Hydrogel) |
| Water Content | 55% |
| Base Curve (BC) | 8.6 mm |
| Diameter | 14.2 mm |
| Oxygen Transmissibility (Dk/t) | 21 |
| UV Protection | None |
| Power Range (SPH) | –10.00 to +4.00 D |
| Replacement Schedule | 2-Weekly (14 days) |
| Pack Contents | 6 Lenses |
| Manufacturer | CooperVision |
After each use, rub both surfaces with multipurpose solution ≥5 seconds per side, rinse, store in fresh solution. Never use tap water or saliva.
Order directly at contactlens365.com with competitive pricing, secure payment, and fast shipping.
A 6-lens box covers ~3 months for one eye (one lens per two weeks). Two boxes provide a full 3-month bilateral supply.
No. Remove before swimming, showering, or using a hot tub. Water contact raises serious infection risk.
Unless your eye doctor has specifically approved overnight wear, do not sleep in contact lenses.
Visit the product page at contactlens365.com for the latest pricing and promotions.
This product page is prepared by contactlens365.com. CooperVision and Biomedics are trademarks of CooperVision Inc. or its affiliates. Always consult a qualified eye care professional before using contact lenses.
| Manufacturer | CooperVision |
|---|---|
| DIA: | 14.20 |
| BC: | 8.60-8.80-8.90 |
| Pack Size:? | 6 lenses |
| Expiration: ? | 18 months and more |
| SOxygen permeability: ? | 27 Dk/t |
| Replacement schedule: ? | 30 Days |
| Water content: ? | 55% |
| Product name: | Biomedics 55 Evolution |
| Cylinder extra power: | from -0.75 to -2.25 |
| Power range: ? | from -10.00 to +5.50 |
| Lenses Material: | Ocufilcon D |
| Extended or overnight wear: ? | Yes |
| UV filter: ? | Yes |
| Medical Device: | Yes |
Thanks for subscribing!
This email has been registered!
