Selecting the correct biweekly contact lens in Canada requires a clear understanding of how different materials support your vision and ocular health. VisionPros Canada carries both Acuvue 2 and Acuvue Oasys to meet the needs of diverse patients. While both lenses share a 14 day replacement schedule, they represent different generations of technology and material science. Evaluating these differences helps you determine which product matches your Canadian lifestyle and comfort requirements.
Acuvue 2 represents a legacy design that has served wearers for many years with a traditional hydrogel material. Acuvue Oasys serves as a modern successor that uses silicone hydrogel to deliver higher levels of oxygen to the eye. Recognizing the technical specifications of each lens is a significant step toward achieving long term comfort and clear sight in various climates.
Acuvue 2 Overview
Acuvue 2 is a traditional hydrogel lens made from a material called Etafilcon A. This lens has a high water content of 58 percent which delivers a soft and flexible feel upon initial insertion. It features a thin design that many long term wearers find comfortable for daily use. Because it uses a high water content, the lens relies on the liquid within the material to transport oxygen to the corneal surface.
This lens remains a functional choice for individuals who have successfully worn hydrogel lenses for years and do not experience dryness issues. It features a visibility tint and an inside out mark to make handling and insertion simpler for the user. While it lacks the advanced moisture systems of newer models, its reliable design continues to deliver stable vision for a wide range of nearsighted and farsighted prescriptions.
Acuvue Oasys Overview
Acuvue Oasys is a more recent development that uses a silicone hydrogel material known as Senofilcon A. This lens features Hydraclear Plus technology which embeds a high volume of wetting agent throughout the lens matrix. This design results in a surface that stays smooth and moist even in challenging environments such as air conditioned buildings or during long hours of computer work. Many users in Canada select Acuvue Oasys to manage symptoms of eye tiredness and dryness related to digital screen use.
Unlike traditional lenses, Acuvue Oasys allows a much higher percentage of oxygen to pass through the material directly to the eye. This breathability is a mandatory requirement for keeping the eyes white and healthy during long days of wear. The lens also features high levels of ultraviolet protection to shield the eyes from harmful radiation. It serves as a versatile option for people who lead active lifestyles and need a lens that performs well from morning until late at night.
Material And Comfort Differences
The shift from hydrogel in Acuvue 2 to silicone hydrogel in Acuvue Oasys marks a noteworthy change in ocular technology. Hydrogel lenses such as Acuvue 2 are highly compatible with the eye but have physical limits on how much oxygen they can transmit. Silicone hydrogel solves this by allowing oxygen to move through the silicone molecules themselves. This results in an oxygen transmissibility rating for Acuvue Oasys that is significantly higher than that of Acuvue 2.
- Higher oxygen flow supports the natural metabolic needs of the cornea
- Modern materials reduce the risk of redness at the end of the day
- Silicone hydrogel maintains its shape better for easier handling
- Advanced wetting agents reduce the friction between the eyelid and the lens
- Lower water content in silicone lenses can lead to less dehydration for some users
Note, you should always verify with your doctor which material is compatible with your tear film. Maintaining a healthy ocular surface is a significant part of successful contact lens wear.
Specifications Table
Selecting The Correct Lens
Your daily routine and environmental exposures are the most significant factors when choosing between these two options. If you spend most of your day in front of a laptop or in a dry office, the advanced moisture and breathability of Acuvue Oasys deliver a clear advantage. It is specifically engineered to handle the reduced blink rate and digital strain typical of modern life. Many eye care professionals recommend this lens for users who are new to contacts or those who want the latest in lens safety.
If you have a long history of wearing Acuvue 2 without any comfort issues or redness, you might prefer to stick with the familiar feel of hydrogel. Some eyes are sensitive to silicone and find that the traditional hydrogel material is more compatible with their eye chemistry. However, many wearers find that upgrading to the silicone hydrogel technology in Acuvue Oasys improves their overall satisfaction and ocular health. Your doctor can provide trial lenses to help you feel the difference between these two technologies during a professional fitting.
Maintenance And Eye Care
A healthy vision routine for biweekly lenses involves diligent cleaning and proper storage every single night. Because these lenses are worn for 14 days, you must prevent the accumulation of lipids and proteins on the surface. Using a high quality multipurpose solution or a hydrogen peroxide system is a mandatory step for keeping your vision clear and your eyes safe from infection.
- Wash and dry your hands thoroughly before touching your lenses
- Use fresh solution in your case every night and never top off old liquid
- Rub and rinse your lenses gently to remove surface debris before storage
- Replace your lens case every three months to prevent bacterial growth
- Remove your lenses immediately if you notice redness or blurred vision
- Follow the 14 day replacement schedule exactly as directed by your doctor
Note, you should never use tap water to rinse your lenses or your lens case. Water from the tap contains microorganisms that can cause serious and permanent vision issues.
Ultraviolet Protection Comparisons
Protecting your eyes from the sun is as significant as protecting your skin. Both Acuvue 2 and Acuvue Oasys feature ultraviolet blocking technology to shield the cornea and the interior of the eye from radiation. Acuvue Oasys delivers Class 1 protection which blocks more than 90 percent of UVA rays and 99 percent of UVB rays. Acuvue 2 delivers Class 2 protection which is still effective but blocks a slightly lower percentage of radiation.
While ultraviolet blocking lenses deliver a noteworthy layer of safety, they do not cover the entire eye or the surrounding skin. You should still wear high quality sunglasses when spending time outdoors to provide complete protection. Combining UV blocking contacts with sunglasses delivers the best defense against long term sun damage. Verifying that your eyes have constant protection is a mandatory part of maintaining your vision.
References
Health Canada. Medical Device Regulations (hc-sc.gc.ca). 2024.
VisionPros Canada. Acuvue Lens Comparison (visionpros.ca). 2026.
AAO. Hydrogel versus Silicone Hydrogel (aao.org). 2024.
CDC. Healthy Habits for Contact Lens Wearers (cdc.gov). 2025.
AOA. Ultraviolet Protection for Eyes (aoa.org). 2025.
