Monofocal vs multifocal lenses for cataract surgery in the UK

Monofocal vs multifocal lenses for cataract surgery in the UK — the quick answer

For monofocal vs multifocal lenses for cataract surgery in the UK, a monofocal lens is the standard NHS option (£0 when NHS-funded) that gives sharp vision at one distance — usually far — so you still wear glasses for reading. A private multifocal lens (typically £3,500–£5,000 per eye) focuses near, intermediate and distance, giving roughly 80% of patients glasses-independence, but with a higher chance of night-time glare and halos.

Both lens types are proven, permanent and implanted during the same 15–20 minute keyhole procedure. The difference is entirely in the optics: how many focal points the lens creates, how much you rely on glasses afterwards, and how your eyes handle light at night. The right answer depends on your eyes, your lifestyle and your tolerance for compromise — not on which lens is "best". Below we set out every UK-available category so you can choose with your surgeon.

You can read our full overview of the operation itself on the cataract surgery treatment page, and see headline pricing on our cataract surgery cost page.

What are the cataract lens options available in the UK?

Every intraocular lens implanted in the UK must be CE or UKCA marked and regulated by the MHRA as a medical device. Within that, four main lens families are offered. NHS cataract surgery uses monofocal lenses only; the other three are private "premium" upgrades.

Monofocal lenses (the standard NHS lens)

A monofocal lens has a single point of focus. It is set to give you crisp vision at one chosen distance — nearly always far, so you can drive and watch television without glasses, but you use reading glasses for books, phones and menus. Monofocals deliver the cleanest, most contrast-rich image of any lens type and cause the fewest night-time visual disturbances, which is why they remain the workhorse of NHS and private surgery alike. Well-known UK-available families include the Alcon Clareon and Johnson & Johnson Tecnis monofocal ranges.

Enhanced (extended) monofocal lenses

Enhanced monofocals are a newer half-step. They keep the clean single-focus image of a standard monofocal but stretch the useful range slightly toward intermediate distance — helpful for a car dashboard or a desktop screen — without the glare penalty of a true multifocal. Examples on the UK market include the Tecnis Eyhance. Most patients still need glasses for small print. Our dedicated enhanced monofocal (Eyhance) cost guide explains where this lens fits.

EDOF (extended depth of focus) lenses

EDOF lenses create one elongated focal zone rather than several separate points. The result is continuous, natural vision from distance through to intermediate — ideal for screens, dashboards, cooking and social settings — with far fewer halos than a full multifocal. The trade-off is that near vision (small print at reading distance) is often not fully glasses-free, so many EDOF patients keep light reading glasses. UK-available examples include the Alcon Vivity and the Tecnis PureSee. See our EDOF lens cost guide and the Tecnis PureSee cost page.

Multifocal and trifocal lenses (the "glasses-free" premium lens)

Multifocal lenses — most modern versions are trifocals — split incoming light into distinct near, intermediate and distance focal points. This is the lens family that most often frees patients from glasses altogether, including for reading. The compromise is that splitting light reduces contrast a little and produces rings (halos) and starbursts around lights at night, which most people adapt to over weeks to months. Widely used UK families include the Alcon PanOptix and the Johnson & Johnson Tecnis Synergy. Our trifocal lens cost guide covers this option in detail.

Toric lenses (a modifier, not a separate range)

"Toric" is not a fifth focal type — it is a correction built into any of the above lenses to cancel out significant astigmatism (an irregularly shaped cornea). If you have meaningful astigmatism and want the best unaided result, a toric version of your chosen monofocal, EDOF or multifocal lens is usually recommended. Without it, an astigmatic eye may still need glasses even after a premium lens.

How do the lens types compare?

The table below summarises how each UK-available lens family performs across the things patients care about most: where you see clearly, how much you will still reach for glasses, and how your eyes behave at night.

The pattern is consistent across the clinical literature: the more focal points a lens provides, the more it frees you from glasses — but the more it tends to scatter light at night. Monofocals sit at one end (cleanest vision, most glasses), trifocals at the other (most glasses-free, most halos), with EDOF and enhanced monofocals in between.

How much do monofocal and multifocal lenses cost in the UK in 2026?

On the NHS, cataract surgery — including a monofocal lens — is free at the point of use for patients who meet the clinical threshold. Premium lenses are almost never NHS-funded, and in England you cannot pay the NHS a "top-up" to upgrade a lens within an NHS operation; a premium lens must be arranged as a fully private procedure. We explain this rule in full on our NHS top-up for a premium IOL page.

Private prices below are typical UK ranges per eye for all-inclusive packages (consultation, surgery, the lens and standard aftercare). Exact figures vary by clinic, surgeon and lens brand, so treat these as indicative rather than fixed quotes.

Two costs are easy to overlook. First, most people need both eyes treated, so a per-eye price usually doubles for a full result. Second, if you choose a monofocal lens you should budget for glasses afterwards; a premium lens often reduces or removes that ongoing spend. Spreading the cost is possible — see our cataract surgery finance options. If you are choosing lens vision purely to reduce your glasses dependence (rather than to treat a cataract), you may instead be considering refractive lens exchange, which uses the same lens families.

Do multifocal lenses cause glare and halos?

Yes — to a degree, and it is the most important trade-off to understand before choosing a premium lens. Because multifocal and trifocal lenses divide light into several focal points, some patients see rings (halos), starbursts or glare around headlights and streetlights at night. Published series report halos in roughly 70% and glare in around 50% of trifocal patients in the early period, though these figures describe noticing the effect, not being troubled by it.

Three points put this in perspective:

• Neuroadaptation is powerful. The brain learns to filter these effects, and most patients report they fade markedly over the first three to six months.
• Lens choice changes the risk. EDOF lenses produce far fewer halos than trifocals, and some — such as Vivity — report night-time symptoms close to those of a monofocal. If night driving is central to your life, an EDOF or enhanced monofocal is often the wiser premium choice.
• No lens is halo-free. Even monofocal patients can notice mild dysphotopsia; premium lenses simply raise the odds.

If you already dislike glare when driving at night, are a professional driver, or have conditions such as significant dry eye, macular disease or advanced glaucoma, a surgeon will usually steer you away from full multifocals toward a monofocal or EDOF lens.

Who suits which lens?

There is no universally best lens — only the best lens for your eyes and priorities. As a general guide:

A monofocal lens usually suits you if…

• You are happy to wear reading glasses and value the cleanest possible distance vision.
• You do a lot of night driving or are sensitive to glare.
• You have another eye condition (macular degeneration, advanced glaucoma, significant dry eye) that makes premium optics less predictable.
• You want the lowest cost, or an NHS-funded operation.

An EDOF or enhanced monofocal usually suits you if…

• You spend a lot of time on screens, dashboards or at arm's length and want to reduce glasses use.
• You want a premium result but are cautious about night-time halos.
• You accept keeping light reading glasses for the smallest print.

A multifocal or trifocal lens usually suits you if…

• Your top priority is freedom from glasses at all distances, including reading.
• You have otherwise healthy eyes and realistic expectations.
• You are willing to accept some night-time glare and a neuroadaptation period.

Some patients who want glasses-free vision but are poor candidates for diffractive premium lenses are offered alternatives such as a light adjustable lens, where the focus is fine-tuned after surgery. Your surgeon will weigh your cornea, retina, pupil size and lifestyle before recommending any option.

Questions to ask your surgeon before choosing a lens

A good consultation should leave you clear on the following. Bring this list:

• Given my eye measurements and health, which lens types are genuinely suitable for me?
• What is my realistic chance of being glasses-free with each option — and for which tasks?
• How much night-time glare or halo should I expect, and how long does it usually take to settle?
• Do I have astigmatism that needs a toric lens for the best result?
• What happens if I am not happy — can the lens be exchanged, and at what cost?
• Is the price all-inclusive (consultation, surgery, lens, aftercare, and any YAG laser follow-up)?
• How many of this specific lens have you implanted, and what are your outcomes?

Cataract surgery is one of the most common and successful operations performed in the UK, but the lens is permanent, so it is worth taking time over the decision. If in doubt, a monofocal is rarely a decision you will regret — and a premium lens is best chosen with open eyes about the trade-offs.

Frequently asked questions