ksa.eeKSA BlogBook now
Vision Correction

ICB Lens Implantation: When Laser Isn't an Option

5. January 2025
Free · 60 seconds

Is laser right for you?

Answer 5 questions and get a free assessment of your vision.

Take the test

No commitment — just an honest answer about your vision.

"You're not a candidate for laser surgery."

If you've heard those words, you know the particular sinking feeling that follows. You'd finally worked up the courage to do something about your glasses. You'd researched laser eye surgery in Tallinn. You'd imagined waking up and just... seeing. And then the door seemed to close.

But here's the thing — it didn't. Not really.

There's More Than One Way to See Clearly

Laser vision correction — like our Flow3 flapless laser procedure — works brilliantly for a wide range of prescriptions. It reshapes your cornea to correct how light enters your eye, and it's the right choice for the majority of patients we see at KSA Silmakeskus.

But not everyone's eyes suit laser. Maybe your prescription is too high (beyond –10 or so, laser reaches its limits). Maybe your corneas are too thin to safely reshape. Maybe you have severe dry eyes that would make laser recovery difficult.

None of this means you're stuck with glasses forever. It means you need a different path — and that path is ICB.

What Exactly Is ICB?

ICB stands for Intraocular Collamer Lens — sometimes called a phakic lens. In plain language: it's a tiny, ultra-thin lens made from a biocompatible material called collamer, which is placed inside your eye, between the iris (the coloured part) and your natural lens.

Your own lens stays exactly where it is. Nothing is removed. Nothing is replaced.

Think of it like a permanent contact lens that lives inside your eye — except you never have to clean it, take it out, or worry about it again.

This is fundamentally different from cataract surgery, where the eye's natural lens is removed and swapped for an artificial one. With ICB lens implantation in Estonia, your natural anatomy remains intact.

Who Is ICB For?

At KSA Silmakeskus, we assess every patient individually. There's no one-size-fits-all in refractive surgery in Tallinn — or anywhere else. But ICB tends to be the right choice for people who:

  • Have high prescriptions — typically –6 and above, especially –10 to –20 or more, where laser simply can't correct enough tissue safely.
  • Have thin corneas — not enough material for the reshaping that Flow3 or other laser methods require.
  • Suffer from severe dry eyes — since ICB doesn't touch the corneal surface, it avoids the temporary dryness that can follow laser procedures.
  • Want reversibility — unlike laser, which permanently reshapes the cornea, ICB can be removed or exchanged if circumstances change.

Some patients come to us convinced they need laser, and we recommend ICB instead. Others come expecting ICB and turn out to be perfect candidates for Flow3. We tell you honestly which is right for you — and if the answer is neither, we'll say that too.

The Procedure: Quicker Than You Think

This is the part that surprises most people.

ICB implantation takes about 10–15 minutes per eye. You're awake the whole time, but you won't feel pain — anaesthetic drops numb the eye completely. No injections. No general anaesthesia. No overnight hospital stay.

The surgeon makes a tiny micro-incision (so small it typically self-seals without stitches), gently inserts the folded collamer lens, and positions it behind the iris. The lens unfolds into place. Done.

Most patients describe it as strange but painless — a bit of pressure, some odd light sensations, and then it's over.

Recovery: Faster Than Laser

Here's a pleasant surprise. While our Flow3 flapless laser eye surgery typically involves 5–7 days before vision fully sharpens, ICB recovery is often even quicker.

Most patients notice dramatically improved vision within 24–48 hours. Many are back at work the next day. Full stabilisation takes 2–4 weeks, during which you'll use prescribed eye drops and attend a couple of follow-up appointments.

Because the corneal surface isn't reshaped, there's no surface healing period. Your eye simply adjusts to its new internal optics.

Reversible — But You Won't Want to Reverse It

One of ICB's unique advantages over laser is reversibility. If your eyes change significantly over the years — or if new technology emerges that you'd rather try — the lens can be removed or exchanged.

In practice? The vast majority of patients never consider removal. The results tend to be stable and long-lasting. But knowing the option exists gives many patients genuine peace of mind, especially those who are understandably cautious about anything permanent.

What Happens at Your Consultation

Every vision correction journey at KSA starts the same way: a thorough, no-pressure consultation. We measure your corneal thickness, map the surface topography of your eye, assess your prescription stability, and evaluate your overall eye health.

Then Dr. Haavel sits down with you and explains — clearly, in human language — what he recommends and why. Flow3? ICB? Neither? You'll know exactly where you stand before any decision is made.

The eye surgery cost in Estonia is significantly lower than in Finland, the UK, or Scandinavia — but the assessment process is just as rigorous as anywhere in Europe. We don't cut corners on the consultation to cut costs.

Your Vision, Your Choice

Being told "no" to laser doesn't mean being told "no" to clear vision. It just means your eyes need a different approach — and ICB is one of the most well-established, proven approaches in modern ophthalmology.

If you've been wearing glasses for years, if you've been told your prescription is too strong for laser, if you've quietly resigned yourself to a lifetime of lenses — it might be worth one more conversation.

Not a sales pitch. Just an honest look at what's possible for your eyes. Take the free quick test to see if you might be a candidate — it takes two minutes, and there's zero obligation.

Frequently Asked Questions

Is ICB lens implantation the same as cataract surgery?

No. In cataract surgery, your natural lens is removed and replaced. With ICB, a tiny collamer lens is placed in front of your natural lens, which stays completely untouched. Think of it as adding a contact lens inside your eye — permanently, but reversibly.

How long does the ICB procedure take?

The procedure itself takes roughly 10–15 minutes per eye. It's done under local anaesthetic drops — no injections, no general anaesthetic. Most patients are surprised by how quick and painless it is.

Can the ICB lens be removed later if needed?

Yes, ICB is fully reversible. The lens can be removed or replaced if your needs change. That said, the vast majority of patients never need or want this — the results are typically long-lasting and stable.

K

Author

KSA Silmakeskus

KSA Vision Clinic

KSA Vision Clinic is Estonia's leading eye clinic, specialising in Flow3 laser correction, dry eye diagnostics and treatment, and comprehensive eye examinations. Our blog shares expert knowledge about eye health.

Flow3 · KSA Silmakeskus

What if glasses were a thing of the past?

Find out if Flow3 laser eye surgery could work for your eyes — before seeing a doctor. Our quick test gives you an honest answer in 2 minutes.

Take the test →2 min · free · no commitment

55,000+ successful procedures. KSA Silmakeskus, Tallinn.

ICBphakic lensvision correctionhigh prescriptionlaser alternative

Keep reading