Title: What Is an Implantable Contact Lens (ICL) and Who Suits It?
An implantable contact lens (ICL) is a tiny, soft lens placed inside the eye to correct short‑sightedness, long‑sightedness, and astigmatism. Unlike laser surgery, the implantable contact lens sits just behind the coloured part of the eye (the iris) and in front of your natural lens. It is additive and reversible, and can be a good option when laser isn’t suitable.
Quick Answer
An implantable contact lens (ICL) is a removable lens placed inside the eye to correct higher prescriptions without reshaping the cornea. It suits adults with stable glasses prescriptions, often 21–45, especially if you have thin corneas, dry eye, or very high myopia or hyperopia. Most patients notice clearer vision within a day. Your exact plan and recovery will be tailored at a consultant‑led assessment.
What is an implantable contact lens (ICL)?
An ICL is a lens made of material that is safe for the body (biocompatible). It is placed behind the iris and in front of the natural lens. Think of it as a permanent, invisible “contact lens” you never need to put in or take out. Your natural lens stays in the eye; no tissue is removed.
Key points:
- It is additive and reversible: the ICL can be removed or exchanged if needed later.
- The procedure usually takes about 15 minutes per eye with local anaesthetic drops.
- Many people see a big improvement within 24 hours, with fine‑tuning over days.
- It can correct high short‑sightedness, long‑sightedness, and astigmatism (via a toric ICL, which is shaped to counter astigmatism).
At Panthagani Eye Clinic in Northampton, Professor Jesse Panthagani uses detailed measurements and imaging to select the exact lens size and power for your eye. If you live in or around Northampton, Kettering, Market Harborough, Peterborough, Stamford or Oundle, it can help when daily tasks like driving, reading, or using screens are limited by thick glasses or contact lenses.
For a fuller overview, see our dedicated page on the implantable contact lens (ICL): Implantable contact lens (ICL).
Who typically suits an ICL?
ICL is designed for adults with stable prescriptions and healthy eyes where laser may not be the best choice. It’s often well‑suited if you:
- Have high myopia (short‑sightedness), high hyperopia (long‑sightedness) or significant astigmatism. The ICL can cover prescriptions beyond the range of laser in many cases.
- Have thin corneas or dry eye where LASIK/LASEK might be less suitable.
- Are roughly 21–45 with a stable prescription for at least 1–2 years.
- Do not have cataracts and have a healthy front of eye (cornea) and back of eye (retina/optic nerve).
Short‑sightedness is very common; you can read more on causes and symptoms in the NHS overview: the NHS guide to short‑sightedness.
Who might be better with another approach?
- If you’re mid‑40s or older and already rely on reading glasses, refractive lens exchange (RLE) may be considered. This replaces the natural lens (similar to cataract surgery) and can address distance and near, depending on lens choice.
- If your prescription is mild to moderate, and your corneas are suitable, laser eye surgery may be simpler.
- If you have cataract changes, lens replacement rather than ICL is usually the right path.
Suitability is confirmed with scans, eye pressure checks, tear analysis (if dry eye), and a detailed consultant examination. Your lifestyle (night driving, screens, hobbies) also guides the decision.
ICL, LASIK or lens replacement: which fits when?
Different tools suit different eyes and goals:
- LASIK/LASEK/PRK reshape the cornea. These are often preferred for mild to moderate prescriptions with suitable corneal thickness and shape. Learn more here: Laser eye surgery (LASIK, LASEK, PRK).
- ICL adds a lens inside the eye. It’s popular for higher prescriptions, thin corneas, or dry eye, and for people wanting a reversible option.
- Refractive lens exchange (RLE) replaces the natural lens (the same process used in cataract surgery, called phacoemulsification). RLE can use monofocal, EDOF (extended depth‑of‑focus), or multifocal lenses to reduce dependence on glasses. See: Lens procedures / refractive lens exchange / premium lenses.
Broadly:
- Under 45 with high prescriptions or thin/dry corneas: consider ICL.
- Under 45 with moderate prescriptions and suitable corneas: consider laser.
- 45+ with emerging reading difficulty or early lens changes: consider RLE.
We will discuss options and trade‑offs in your consultation so the plan fits your eyes and your day‑to‑day life.
What to expect: assessment, procedure and recovery
- Your consultation
You’ll meet Professor Panthagani for a full assessment. This includes vision testing, corneal scans, lens sizing measurements, eye pressure, and retinal checks. We confirm your prescription is stable and discuss night driving, screen use, sport, and work needs. You’ll get a clear recommendation, risks and benefits, and time to ask questions. - The day of your procedure
You’ll have anaesthetic drops to numb the eye. Through a tiny incision at the edge of the cornea, the folded ICL is placed behind the iris and positioned carefully. The incision seals by itself. Most procedures take around 15 minutes per eye. Some people have both eyes on the same day; others prefer separate days. We plan this around your needs and safety. - Aftercare and recovery
You’ll go home the same day with eye drops and written instructions. Many people notice clearer vision the same day, with a crisp improvement by the next morning. You may have mild light sensitivity or halos at night while the eye settles. Most desk‑based work is possible within a couple of days. Exercise is phased in gradually. Only return to driving once we confirm your vision and you meet DVLA standards.
Potential side‑effects and risks
All eye procedures carry risks, although serious issues are rare. With ICL, these can include glare/halos (often settling), temporary eye pressure rises, inflammation, lens rotation (especially with astigmatism‑correcting toric ICLs), infection (very rare), and a small long‑term risk of cataract formation. We reduce risk with careful measurements, lens selection, and close follow‑up. Your individual risk will be discussed at consultation.
Will I still need glasses after ICL?
Many people choose ICL to cut down their use of glasses and contact lenses, often for driving, sport, and day‑to‑day tasks. However, you may still need glasses for some things:
- Reading glasses are likely in your 40s and beyond due to presbyopia (the natural lens becomes less flexible with age).
- Fine‑tuning glasses may help in low light or for detailed work.
- Astigmatism can be corrected with a toric ICL, but small residual amounts can remain.
Targeting one eye slightly for near (mini‑monovision) is sometimes an option. This has pros and cons and needs careful discussion and testing in clinic.
How ICL decisions are made personal to you
Your hobbies and work matter. Night bus routes in Northampton, early commutes to Peterborough, long hours at screens, or racquet sports in Market Harborough all shape the plan. We assess:
- Prescription strength and stability.
- Corneal shape/thickness and tear film (dry eye).
- Pupil size and night driving needs.
- Retinal health and general eye status.
- Your goals: less dependence on glasses, sport, driving, reading.
ICL is one of several options. Sometimes a staged approach or a different procedure is safer or a better match for your lifestyle. That’s why a consultant‑led assessment is key.
Costs and getting started
Your first step can be a free video assessment to explore suitability and questions. A face‑to‑face consultation with Professor Panthagani (including detailed imaging) costs £245. For typical fee ranges and finance options, see our Prices & interest‑free finance page. Exact recommendations and quotes follow your examination; we don’t give one‑size‑fits‑all packages.
FAQ: implantable contact lens (ICL)
Q: Will anyone be able to see the ICL in my eye?
A: No. The lens sits behind the iris (the coloured part of the eye), so it’s invisible to others. You won’t feel it, and you do not need to clean or handle it.
Q: How long does an ICL last?
A: It is designed to stay in place for many years. Because it is additive and reversible, it can be removed or exchanged if your needs change later (for example, if you later choose lens replacement for reading vision). This is uncommon and would be discussed if ever relevant.
Q: How soon can I exercise, swim, or fly?
A: Light exercise often resumes within a week; avoid swimming and contact sports for at least 2–4 weeks or as advised. Flying is usually safe once the early checks are complete. Your exact timeline depends on your healing and our guidance at follow‑up.
Q: Do I need to stop wearing contact lenses before my assessment?
A: Yes, typically a short “contact lens holiday” is needed to let the cornea return to its natural shape for accurate measurements. Soft lenses are usually stopped for about a week; rigid lenses can take longer. We’ll confirm timings when you book.
If you’re comparing ICL with other routes, you may also find these helpful:
- Understanding how laser options differ: Laser eye surgery (LASIK, LASEK, PRK)
- Considering lens replacement and premium options: Lens procedures / refractive lens exchange / premium lenses
- Full ICL overview and suitability checks: Implantable contact lens (ICL)
As always, the right choice depends on your eyes and aims. We’ll discuss what fits best for your vision, safety, and lifestyle.
Next steps
- Book a free video call with our team to discuss whether ICL could suit you: book a free video assessment.
- Prefer to speak to us? Call the clinic on 07300 61 71 71.
- Read more about how ICL works and suitability: Implantable contact lens (ICL).
Professor Jesse Panthagani, Associate Professor of Ophthalmology and consultant ophthalmologist, offers consultant‑led, unhurried care in Northampton for patients across Northamptonshire, Rutland and Cambridgeshire. Individual advice is always given in consultation.