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Wear Schedule and Replacement Routine
Choosing the correct reusable contact lens involves comparing several features: wear schedule, material technology, and specific hydration systems. Two of the most frequently chosen silicone hydrogel options are Acuvue Oasys and Bausch + Lomb ULTRA.
While both are known for comfort and performance, Acuvue Oasys is typically a biweekly lens, and ULTRA is a monthly lens. If you prefer a shorter reusable lens cycle, bi weekly contacts is worth comparing with your eye care professional before deciding which option fits your routine.
The main difference between Acuvue Oasys and ULTRA lies in their approved replacement schedules. Both lenses use silicone hydrogel materials, which differ from hydrogel options such as Etafilcon A contact lenses in oxygen flow, water content, and overall lens feel. Both lenses utilize silicone hydrogel materials and are approved for extended wear, meaning they may be worn continuously for up to six nights and seven days, subject to eye care professional approval. For wearers who need distance correction, nearsightedness contacts should also be evaluated based on prescription accuracy, comfort, and approved wear time.
Acuvue Oasys
Acuvue Oasys is designed for a biweekly (14-day) replacement schedule. This shorter replacement cycle means the lens accumulates fewer deposits over its lifetime compared to a monthly lens. This makes Oasys a good option for people who struggle with protein or lipid build-up on the lens surface. After 14 days, the lens must be discarded, regardless of how often it has been worn.
Bausch + Lomb ULTRA
ULTRA is designed for a monthly (30-day) replacement schedule. The benefit of the monthly schedule is lower cost per lens and less frequent ordering. However, it requires a commitment to rigorous nightly cleaning to ensure the lens remains comfortable and hygienic for the full 30 days.
The breathable materials used in silicone hydrogel contact lenses allow more oxygen to reach your cornea than many traditional hydrogel lenses. However, this does not mean every silicone hydrogel lens is automatically suitable for sleeping. Follow the exact wear, cleaning, and replacement schedule provided by your eye care professional.
Technology and Hydration Systems
Both lenses are engineered to combat dryness, a common complaint with digital screens and dry environments, but they use different methods to retain moisture.
Acuvue Oasys (Hydraclear Plus Technology)
Acuvue Oasys is fabricated using Senofilcon A, a silicone hydrogel material featuring Hydraclear Plus Technology. This technology integrates a wetting agent directly into the lens material. This keeps the lens smooth and hydrated, minimizing friction against the eyelid during blinking. Oasys is widely known for its ability to provide comfort in air-conditioned or heated environments where air humidity is low.
Bausch + Lomb ULTRA (MoistureSeal® Technology)
ULTRA is fabricated using Samfilcon A, a silicone hydrogel material featuring MoistureSeal® Technology. This technology is specifically designed to retain high moisture content for up to 16 hours. ULTRA’s surface coating works to resist dehydration, making it highly effective at mitigating the drying effects associated with prolonged digital device usage, which often causes a slower blink rate.
Visual Performance and Extended Options
Both brands provide specific correction options for complex vision needs, ensuring patients can choose based on comfort technology rather than prescription availability.
- Astigmatism – Both Acuvue Oasys for Astigmatism and ULTRA for Astigmatism feature proprietary stabilization designs to keep the correction centered and minimize rotation.
- Presbyopia – Both brands offer multifocal lenses. Acuvue Oasys Multifocal and ULTRA for Presbyopia use blended power zones to provide clear vision at near, intermediate, and distance viewing ranges.
Both lenses also include UV protection, adding an extra layer of defense for the part of the eye covered by the lens.
Technical Specifications
| Feature | Acuvue Oasys | Bausch + Lomb ULTRA |
|---|---|---|
| Replacement Schedule | Biweekly (14 days) | Monthly (30 days) |
| Material Name | Senofilcon A | Samfilcon A |
| Hydration System | Hydraclear Plus (wetting agent blended in material) | MoistureSeal® (surface retention coating) |
| Oxygen Permeability (Dk/t) | 103 | 163 |
| Best For | Consistency, environmental dryness, deposit build-up concerns. | Cost savings, digital strain, longest possible wear time. |
| UV Protection | Yes | No (ULTRA does not specifically list UV protection) |
Cost and Practical Considerations
The difference in wear schedule heavily influences the overall cost and the required cleaning routine. While Acuvue Oasys may have a lower box price, the monthly ULTRA lens provides better cost savings over a yearly period because you purchase fewer boxes.
The lower oxygen permeability of Oasys (103 Dk/t) compared to ULTRA (163 Dk/t) is also a practical consideration. Lower Dk/t can be perfectly adequate for daytime wear, but the higher Dk/t of ULTRA provides better performance for people who routinely wear their lenses for 16 or more hours a day, mitigating dryness and redness.
Tips for Maintaining Lens Comfort
Regardless of the brand or schedule chosen, correct cleaning and handling are mandatory for maintaining comfort and safety. You must adhere strictly to these guidelines:
- Never reuse contact lens solution. You must dump the old solution out of the case every morning and use fresh solution every night.
- Always wash your hands thoroughly before handling the lenses.
- Replace your contact lens case every three months to prevent bacteria buildup.
- Use rewetting drops as needed throughout the day, especially if you feel dry eye symptoms.
- Do not wear the lenses past their scheduled replacement date.
Making Your Decision
The decision between Acuvue Oasys and ULTRA relies on prioritizing either a shorter replacement cycle or better oxygen permeability. If you struggle with deposits or prefer the hygiene of a biweekly throwaway schedule, Acuvue Oasys is a sound choice.
If you wear lenses for long hours, spend extensive time on screens, or seek the lower cost of a monthly lens, ULTRA may be the better fit. Speaking with your eye doctor is necessary to confirm which lens provides the correct physical fit and wear schedule for your eyes.
Frequently Asked Questions
1. Is Acuvue Oasys available in a daily disposable version?
Yes. Acuvue offers a daily disposable option, Acuvue Oasys 1-Day, which uses HydraLuxe technology, offering a different material science than the biweekly version.
2. Is Bausch + Lomb ULTRA better for computer users?
ULTRA is designed with MoistureSeal® Technology specifically to retain moisture for long periods (up to 16 hours), making it highly effective for counteracting the reduced blinking associated with computer use.
3. Does the higher Dk/t (Oxygen Permeability) of ULTRA matter?
Yes. A higher Dk/t provides better long-term eye health, especially for people who routinely wear their lenses for 16 hours or more per day, as it significantly minimizes dryness and redness.
Sources
- FDA: Contact Lenses: fda.gov/medical-devices/contact-lenses
- FTC: Contact Lens Rule guide + FAQs: ftc.gov/business-guidance/resources/contact-lens-rule-guide-prescribers-sellers
- Bausch + Lomb: ULTRA Product Details: https://www.google.com/search?q=bausch.com/ecp/our-products/contact-lenses/monthly-silicone-hydrogel-lenses/ultra-contact-lenses
- Acuvue: Oasys Product Details: acuvue.com/contact-lenses/acuvue-oasys-2-week
- CDC: Contact Lens Safety: cdc.gov/contact-lenses/care/index.html
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