PRECISION7®: The Weekly Contact Lens That Changes the Fitting Conversation

A weekly contact lens that keeps going for 16 hours, even on day seven. That is not a marketing promise. That is what Alcon has put in front of the clinical community, and independent practices need to know exactly what to do with it.

PRECISION7® is the world's first one-week silicone hydrogel replacement contact lens. Launched by Alcon at the American Academy of Optometry meeting in November 2024, it fills a longstanding gap in the contact lens market. Not daily. Not monthly. Seven days, replaced, done.

For independent practices managing a full contact lens patient base, that gap matters more than the category overview suggests. Here is what PRECISION7 actually is, what the technology does, and why fitting it well is exactly the kind of clinical differentiator that independents are built for.

What makes it different: the ACTIV-FLO® System

The headline technology in PRECISION7 is the ACTIV-FLO® System. It is not a surface coating that wears off. It is a dual-agent approach: a moisturising agent embedded permanently within the Serafilcon A lens matrix, combined with a proprietary replenishing agent that continues to release onto the surface throughout the seven-day wear period.

The result, validated in a prospective clinical study of 181 wearers in the US, is that the lens maintains 16 hours of comfort and stable vision through day seven. Not day one. Day seven. That distinction matters clinically because the end of a monthly lens replacement cycle is exactly where comfort and performance typically fall apart.

Wearers rated PRECISION7 9 out of 10 for comfort and 9 out of 10 for vision, both measured on day 7. For the toric variant, nine out of ten extend to handling as well, which is clinically relevant given that toric lens handling confidence is one of the most common barriers to patient retention in that modality.

Alcon's own comparative data shows PRECISION7 lenses accumulate significantly less lipid deposition than ACUVUE OASYS 2-Week at the end of their respective replacement periods. This finding directly addresses one of the most common causes of lens dropout in reusable modalities.

The material and the numbers

Both variants share the same core material: serafilcon A, a new silicone hydrogel with 55% water content and a modulus of 0.6 MPa. Beyond that, the sphere and toric have distinct specifications — and it is worth knowing exactly what they are.

PRECISION7® (sphere) — base curve 8.4mm, diameter 14.2mm, centre thickness 0.08mm at -3.00D, Dk/t 149 at -3.00D. Power range: +6.00 to -8.00D in 0.25D steps, extending to +8.00D and -12.00D in 0.50D steps at the extremes. Available in 1-count trial packs, 12-count and 27-count boxes.

PRECISION7® for Astigmatism (toric) — base curve 8.6mm, diameter 14.5mm, centre thickness 100 microns at -3.00D, Dk/t 119 at -3.00D. Power range: +6.00 to -6.00D in 0.25D steps, extending to +8.00D and -10.00D in 0.50D steps. Cylinder options: -0.75, -1.25, -1.75, and 2.25D, across a full 180° axis in 10° steps. Same packaging options as the sphere.

Built into both variants: Class 1 UV absorption, filtering more than 90% of UVA and 99% of UVB rays. Also built in: 34% blue-violet light filtration. These are not optional add-ons. They come with every lens, in every power.

One important clinical note: Alcon is clear that UV-absorbing contact lenses are not a substitute for UV-protective eyewear. The lenses do not cover the full ocular surface and surrounding area. Patients wearing PRECISION7 should still be advised to use appropriate sunglasses or UV-protective spectacles when needed.

The toric case: why PRECISION BALANCE 8|4® matters

The toric variant features the PRECISION BALANCE 8|4® lens design — Alcon's proven stabilisation technology — and the detail in PRECISION7 for Astigmatism that deserves the most attention in the fitting room.

Stabilisation points positioned at the eight and four o'clock positions minimise lower lid interaction. The lens settles in under 60 seconds. Orientation lands within 3° of ideal, with minimal oscillation on blink — Alcon's clinical data records 100% of lenses oscillating no more than 5° with each blink. The result is a consistent, stable vision that does not shift when a patient looks down at their phone, up at a screen, or tilts their head.

For practices fitting torics, that stability has a practical implication at the first appointment. Alcon's clinical data shows 99.9% first-lens fit success — meaning that in the vast majority of cases, the initial trial lens fits correctly without needing a refit. That saves chair time and builds patient confidence from the first visit. Only 10% of astigmatic patients are currently wearing contact lenses. That is not a saturated market. It is an opportunity.

Who is it actually for?

This is the question independent practices need to answer carefully in the fitting room.

Alcon is positioning PRECISION7 specifically for patients for whom daily disposables are not a viable option — most often due to cost. The company's own data shows that nearly 9 in 10 eye care professionals believe daily disposable silicone hydrogel lenses are better overall for their patients. Yet, more than half of new contact lens patients are still being fitted with reusable lenses. Eight out of ten of those patients are in reusable lenses because of cost.

PRECISION7 sits between the two. More frequent replacement than monthly means a cleaner lens and a lower deposit burden throughout the cycle. More affordable than daily disposables for the patient who wears lenses five or six days a week. The replacement schedule is one the patient chooses — a consistent day each week, what Alcon calls its "Pick Your Day" approach — which turns a clinical instruction into a habit that is easy to maintain.

For practices, that means a more nuanced conversation than it used to have. Weekly is not a step down from dailies. It is a clinically informed choice with a patient at its centre. That is a very different conversation from the one a high-volume corporate practice has time for.

Care requirements: be straight with patients

PRECISION7 is a reusable lens. It requires nightly removal, cleaning, disinfection, and storage in a lens case with fresh solution. That routine is non-negotiable. Patients who are not suited to a care regimen — or who are unlikely to follow one consistently — are not suited to this lens, regardless of how good the technology is.

The lens is approved for up to 6 nights of continuous wear, but Alcon's commercial messaging is firmly focused on daily wear with nightly removal. The extended wear approval exists as clinical peace of mind — for the patient who occasionally naps in a lens — not as a prescribed wearing schedule.

Patients need to understand the difference. That conversation takes time and clinical credibility. Both of which have independent practices to a greater extent than the alternatives.

The independence angle: fitting this lens is the point

Here is what PRECISION7 represents for an independent practice that takes it seriously.

This is the only one-week replacement contact lens on the market. It sits in Alcon's WaterInnovations portfolio alongside DAILIES TOTAL1®, PRECISION1®, and TOTAL30® — a portfolio built on the principle that different patients need different solutions. PRECISION7 is a product that requires a proper fitting conversation — about lifestyle, budget, replacement habits, and care compliance. Corporations fit patients quickly. They do not routinely have the clinical or commercial space to explain why weekly outperforms a monthly lens at day seven, or why the ACTIV-FLO® System is a fundamentally different approach to hydration than a surface coating.

Independent practices do. The practitioner who fits PRECISION7 well, explains it well, and follows up well is building a patient relationship that has a longer natural lifespan than almost any other contact lens modality. This patient comes back for a supply. They come back for reviews. They send friends and family who their own optician has told that weekly lenses are not a thing.

They are now.

What to do next

Contact your Alcon representative to discuss fitting stocks of PRECISION7 sphere and PRECISION7 for Astigmatism. Make sure your team understands the ACTIV-FLO® System and PRECISION BALANCE 8|4® well enough to explain both in plain English to a patient. Build the fitting conversation around the patient's week, not around the lens specification sheet.

The independent practice has always been the right place for a clinical conversation. PRECISION7 is one more reason why.