How Long Does an ICL Lens Last?

10 Sep 2026

An ICL lens is designed to stay in your eye permanently. It doesn't wear out and it doesn't need routine replacement. What can change over the years is your eye itself, not the lens.

If you're thinking about ICL surgery in London, one of the first things you'll want to know is how long the result lasts. It's a fair question. You're investing in your vision and you'd rather not be back in the surgeon's chair in a few years. The short answer is reassuring, but it helps to understand what the lens can and can't do over time.

What is an ICL lens made of?

An implantable collamer lens is made from collamer, a soft, flexible material that combines collagen with a polymer. Collamer is biocompatible, so it's designed to sit comfortably inside the eye without being rejected or breaking down.

The lens is placed behind the iris and in front of your natural lens, which is why it's also called a phakic intraocular lens. Your own lens stays where it is, and no corneal tissue is removed.

Is an ICL lens permanent?

Yes. The EVO ICL and earlier Visian ICL lenses are intended as long-term vision correction with no expiry date. Unlike contact lenses, they don't need cleaning, replacing or taking out at night, and the collamer material isn't expected to degrade inside the eye.

At the same time, ICL is one of the few vision correction procedures that can be reversed. If your eyes change or a problem develops, lens removal or exchange is possible when it's clinically appropriate. That reversibility is genuinely useful, and it's one of the reasons we like ICL for younger patients with high prescriptions.

Diagram showing where an ICL lens sits between the iris and the eye's natural lens — How ICL surgery works: the lens is placed between the iris and the eye's natural lens.

Why your vision may still change over time

The lens itself is stable. The eye around it keeps ageing, which is why long-term planning is part of every consultation for ICL surgery in London. Changes you may notice later in life include:

Presbyopia. From your mid-40s onwards, most people find close-up focus harder and start to need reading glasses. ICL doesn't stop this.
Cataract. Your natural lens can cloud with age. If a cataract develops, the ICL is removed during cataract surgery and replaced with a lens implant.
Prescription shift. If short sightedness or astigmatism was still changing before surgery, your prescription may alter slightly afterwards. This is exactly why prescription stability is checked beforehand.

What helps an ICL result last?

A stable prescription for at least a year before surgery
Accurate measurements so the lens is the right size for your eye
A healthy endothelial cell count, which protects the clarity of the cornea
Regular follow-up appointments to monitor eye pressure and the lens position
Reporting any new symptoms promptly rather than waiting for your next review

Careful assessment beforehand is what gives the lens its best chance of doing the job for decades.

Who tends to benefit most from ICL?

ICL is often recommended for people with a high prescription, thin corneas or dry eyes, where laser eye surgery may not be the safest option. A toric ICL can also correct astigmatism alongside short sightedness. If laser treatment has been ruled out for you, ICL surgery in London may still be a route to clear vision without glasses or contact lenses.

How often will you need check-ups?

After surgery you'll have a series of reviews in the first weeks and months while your eyes settle. Once things are stable, your surgeon will usually recommend ongoing check-ups to monitor eye pressure, the space between the ICL and your natural lens, and the health of the cornea. The visits are quick, and good aftercare is one of the most valuable parts of ICL surgery in London, because it protects your result for the long term.

Why choosing an experienced surgeon matters

How long an ICL result lasts depends heavily on the planning that happens before surgery. Choosing a consultant-led clinic for ICL surgery in London means your lens sizing, eye measurements and suitability are assessed by an experienced ophthalmic surgeon, and your aftercare is overseen by the same team rather than passed around.

Ready to take the next step?

A consultation is the only way to know whether ICL suits your eyes. Optimal Vision is consultant-led, and between them our surgeons have carried out more than 35,000 ophthalmic procedures. Every recommendation starts with your own scans, not a standard script.

We see patients at 7 Gower Street, WC1E 6HA and at Harley Street in Marylebone, both CQC-registered. Call 020 7183 3725, email info@optimalvision.co.uk or book a consultation online. Ask about fixed pricing and 0% finance options when you call.

Frequently asked questions

Does an ICL lens need replacing?

No. An ICL lens is designed to stay in place permanently and doesn't need routine replacement. It can be removed or exchanged if your eyes change and it's clinically necessary.

Can an ICL lens wear out?

The collamer material is biocompatible and isn't expected to break down inside the eye, so the lens doesn't wear out the way a contact lens does.

Will I still need reading glasses after ICL?

Possibly, later in life. ICL corrects your distance prescription but doesn't prevent presbyopia, which affects most people from their mid-40s.

What happens to my ICL if I develop a cataract?

The ICL is removed during cataract surgery and your natural lens is replaced with an intraocular lens, which can also correct your prescription.

How do I know if ICL surgery in London is right for me?

A detailed consultation with scans and measurements is the only reliable way to confirm suitability. Your surgeon will look at your prescription, corneal thickness, endothelial cell count and eye anatomy.