ICL Surgery FAQs
Blue Fin Vision® consultants answer the most common questions about Implantable Collamer Lens surgery. From suitability to recovery, risks to costs, find reassurance and practical guidance to help you make an informed decision about restoring your vision.
What is Implantable Collamer Lens (ICL) Surgery?
An ICL is a soft, foldable, biocompatible lens made from Collamer that is surgically implanted in the posterior chamber of your eye – positioned behind your iris and in front of your natural lens. Performed under local anaesthesia, the quick 20–30 minute procedure is one of the most advanced vision correction options available today. The procedure preserves your natural corneal shape, does not cut corneal nerves (unlike laser surgery), and the lens can be removed or replaced if your vision needs change in future.
Am I a Candidate for ICL Surgery at Blue Fin Vision®?
Most adults aged 21–45 with stable prescriptions and healthy eyes are suitable candidates. If poor vision significantly affects your daily life, work or hobbies, you likely qualify. Symptoms such as dependence on glasses or contact lenses, blurred vision, or difficulty with sports and activities indicate suitability. Your vision prescription must remain stable for at least one year (within 0.5D change). Complete our free self-assessment tool or book a consultation for personalised advice based on advanced imaging of your eyes.
How Does ICL Differ from LASIK?
ICL and LASIK are both excellent vision correction options but work differently. LASIK reshapes your cornea permanently with a laser, whilst ICL implants a lens inside your eye, preserving your cornea’s natural shape. ICL is ideal for patients with very high prescriptions (particularly above -10D), thin corneas, or existing dry eye – situations where LASIK is unsuitable. Unlike LASIK (which cuts corneal nerves and can worsen dry eye), ICL preserves corneal nerves and does not cause dry eye. ICL is also reversible; the lens can be removed or replaced if your vision needs change. For high prescriptions, thin corneas, dry eye, or those wanting a reversible procedure, ICL is often the superior choice.
Is ICL Surgery Painful?
No – local anaesthetic drops numb your eye completely before surgery begins. Many patients opt for light sedation to help them relax. You remain awake and aware but completely comfortable throughout the entire procedure. Most patients describe only a mild pressure sensation as the lens is inserted.
How Long Does ICL Surgery Take?
Active surgery lasts 10–15 minutes per eye. Total theatre time is typically 30–45 minutes, with same-day discharge. If treating both eyes, the second eye is completed immediately after the first using strict separation protocols.
What Can I Expect During ICL Surgery?
Your eye will be numbed with anaesthetic drops and positioned carefully to prevent blinking. Your surgeon will make a small, self-healing incision (3–3.2mm) in the cornea and fold your custom ICL into a special injection device. The folded lens is gently inserted through the incision and positioned precisely between your iris and natural lens. The incision then self-seals without stitches. You may feel gentle pressure and hear soft surgical sounds, but you remain comfortable throughout.
How Long is Recovery from ICL Surgery?
Many patients notice significant vision improvement within hours of the procedure; substantial improvements occur within 24–48 hours. Most patients notice significantly clearer vision than before surgery within the first week, with minor fluctuations settling by Week 2. Full stabilisation and best vision occur over 2–4 weeks as the eye heals. The vault (space between your ICL and natural lens) becomes stable around 3 months post-surgery.
Are There Risks Associated with ICL Surgery?
ICL surgery is very safe – one of the UK’s safest elective procedures. Modern techniques and advanced diagnostics minimise risks significantly. Temporary side effects like vision fluctuation, mild glare or inflammation are common and typically resolve within weeks. Serious complications are rare; infection occurs in approximately 1 in 1,000 cases and is managed promptly with expert treatment. Our detailed risks page explains all potential complications, warning signs and how Blue Fin Vision® minimises surgical risk through rigorous protocols.
How Much Does ICL Eye Surgery Cost?
We believe in transparent pricing tailored to your specific needs. Costs include your consultation with advanced imaging, your custom ICL lens implant, the surgical procedure by your named consultant, all post-operative drops with no hidden fees, structured post-operative follow-ups and lifetime annual vault measurements. Factors affecting pricing include lens type (monofocal versus premium options) and whether one or both eyes are treated. Consultation fees are clearly stated upfront and can be deducted from surgery costs. Finance options are available to make premium care accessible. For detailed pricing specific to your needs, visit our costs page or contact us directly.
How Soon After ICL Surgery Will I See Improvement?
Many patients notice significantly clearer vision same day; substantial improvements within 24–48 hours. Most patients report noticing dramatically improved vision by the next morning after surgery, with most achieving 20/40 or better vision within 24 hours and many achieving 20/20 or better. Vision becomes increasingly sharp and stable each day, with full stabilisation by 1–3 months.
Will I Still Need Glasses After ICL Surgery?
This depends on your lens choice and lifestyle. Monofocal ICLs excel at distance vision but require reading glasses for near tasks. Some patients are happy with this straightforward option. For those aged 45–50 with presbyopia, monofocal with monovision targeting can provide functional near and distance vision without reading glasses, though some adaptation is needed. During your consultation, we discuss realistic expectations based on your chosen lens type and lifestyle.
Why Are Vault Measurements and Endothelial Cell Counts Important?
The vault – the space between your ICL and natural lens – is critical for long-term eye health. Optimal vault range is 250–750 micrometres. Vault becomes stable by 3 months post-surgery and annual measurements confirm your lens remains in the optimal zone. Endothelial cells are the inner corneal layer; gradual loss is a recognised concern with all phakic lenses. Annual monitoring detects concerning changes early, allowing prompt intervention if needed. This is why Blue Fin Vision® includes lifetime annual vault measurements at no extra cost.
What Happens After the First Year Following My ICL Surgery?
Your care continues beyond the first year with structured annual check-ups. These include vault measurements to confirm optimal lens positioning, endothelial cell count checks to monitor corneal health, comprehensive vision assessments and any adjustments needed. These annual reviews are completely included in your Blue Fin Vision® package at no extra charge.
Are Yearly Reviews Included in My ICL Surgery Package, or Do They Incur Extra Fees?
All annual reviews are completely included in your Blue Fin Vision® package at no extra charge. This includes annual vault measurements at any of our locations (London, Chelmsford, Hatfield), yearly endothelial cell count evaluations, comprehensive eye health assessment, vision stability checks and any necessary follow-up consultations for concerns. Your lifetime monitoring is part of our commitment to your long-term vision protection.
Can the ICL Be Removed or Replaced? Is It Reversible?
Yes, absolutely. ICL surgery is fully reversible – one of its key advantages over LASIK. The lens can be removed through a small incision if needed, and a new lens can be implanted if your prescription changes significantly. Your natural lens and cornea remain preserved and unharmed; the procedure does not alter your eye structures permanently. This reversibility offers significant peace of mind compared to permanent procedures like LASIK.
Will I Need to Replace the ICL at Some Point?
ICL lenses are highly durable and designed to last a lifetime. Replacement is rarely necessary. However, if your vision needs change significantly over many years or complications require intervention, the lens can be safely removed or exchanged by a qualified surgeon. Your natural lens and cornea remain preserved.
Can Both Eyes Be Treated with ICL at the Same Time?
Yes, for suitable candidates, both eyes can be treated during the same surgical session using bilateral ICL surgery. Both eyes are treated consecutively (one after the other) using strict protocols with separate, sterile instruments for each eye. Both eyes heal together under the same anaesthetic, and the entire procedure takes approximately 40–50 minutes total. Same-day discharge is standard. The advantages include quicker overall visual recovery, balanced vision improvement in both eyes from Day 1, and elimination of vision imbalance that occurs with sequential surgery.
What If I Relocate or Move Overseas After Surgery? Can I Still Have My Reviews?
Yes, you can maintain your care even if you relocate. Your ICL can be monitored by any qualified ophthalmologist worldwide, and we can coordinate with local clinicians to share your records and provide guidance. Many international patients return annually for their reviews at Blue Fin Vision®, and we provide your complete surgical records for your records. We remain available to answer questions and provide expert guidance regardless of where you live.
When Can I Drive After ICL Surgery?
Typically 1–2 weeks after surgery, once your surgeon confirms good vision at your initial check-up. For bilateral surgery, both eyes heal similarly, though your surgeon confirms safe driving timing at your post-operative review. Avoid driving if glare persists or vision feels unsafe.
What Drops Are Used and for How Long?
Antibiotic drops prevent infection (1 week post-surgery) and steroid/anti-inflammatory drops reduce swelling (4 weeks post-surgery). All drops are provided at no extra cost. Simple instructions explain how to use them correctly – shake bottles, space drops 5 minutes apart. Complete written guidance is provided, and our team is always available if you have questions.
What Are the Lens Options Available?
onofocal ICL: Best for patients prioritising sharp distance vision. Ideal for those with active lifestyles or distance-focused activities like driving and sports.
Toric ICL: Best for patients with astigmatism (up to 6.0 diopters) requiring precise correction. Requires accurate measurements and alignment but delivers excellent vision stability.
Monofocal with Monovision: Best for patients aged 45–50 combining myopia and presbyopia, wanting functional near and distance vision without reading glasses. Requires adaptation but can delay need for lens replacement surgery.
Your consultant will discuss which lens aligns with your refractive error, lifestyle and visual priorities.
What Lens Options Are Available for Astigmatism?
Toric ICL lenses correct astigmatism up to 6.0 diopters, either alone or combined with myopia or hyperopia correction. Toric lenses require precise alignment and sizing to prevent rotation, making accurate measurements critical. Modern toric lenses have excellent stability features, and significant rotation is uncommon.
What if an Issue Is Found During One of My Annual Reviews?
Early detection allows prompt, effective management. Elevated eye pressure is managed with pressure-lowering drops or other interventions. Vault changes are monitored closely, with lens repositioning performed if significant drift is detected. Inflammatory changes are treated with anti-inflammatory medications. Our rapid access policy ensures you’re seen promptly if any changes are detected. Early intervention prevents minor issues from becoming major problems.
What If I Have Fuchs' Corneal Dystrophy, Glaucoma or Other Conditions?
These conditions don’t rule out ICL surgery, they simply require tailored surgical planning.
Fuchs’ Endothelial Dystrophy or Corneal Concerns: Advanced corneal imaging guides safe surgery with protective measures. Patients may require closer post-operative monitoring, but surgery is often appropriate and beneficial.
Glaucoma or High Eye Pressure: We monitor eye pressure carefully and select lenses designed to minimise pressure fluctuations. Coordination with your glaucoma specialist ensures optimal management.
Mild Retinal Concerns: Pre-operative scans assess whether the macula is healthy enough to benefit from ICL surgery. Surgery can improve visual function if the macula is adequately healthy.
Previous Corneal Surgery (LASIK, PRK): Specialist biometry techniques ensure accurate lens power calculation for optimal outcomes.
Complex cases are welcome – our consultant-led approach tailors surgery to your individual needs and eye health.
What Makes Blue Fin Vision® Different for ICL Surgery?
Consultant-led care from initial assessment through aftercare – your named surgeon performs all stages of your journey, not different staff at each stage. We use advanced diagnostics including swept-source OCT and AI-powered vault prediction to optimise lens sizing and safety. Premium equipment and techniques deliver optimal surgical precision. Your lifetime commitment includes annual vault measurements and endothelial cell monitoring included forever at no extra charge. Surgery typically occurs within 4–8 weeks of enquiry, compared to NHS waiting times that can reach 18+ months. We achieve audited outcomes and hold recognition from prestigious guides. We offer multiple convenient locations (London, Chelmsford and Hatfield) and prioritise your safety, vision and experience at every stage.
How Do I Book a Consultation for ICL Surgery?
Booking a consultation is simple. You can complete our online enquiry form with your details and preferred dates, call us directly to speak with our team, or use our free self-assessment tool. Consultations are typically scheduled within 1–2 weeks of enquiry. Your comprehensive consultation includes advanced imaging (swept-source OCT, biometry, anterior chamber measurements), detailed eye examination and discussion of your options. You’ll meet your named consultant surgeon – the same person who will perform your surgery if you proceed. If suitable and you wish to proceed, surgery is typically scheduled within 2–6 weeks.
What's Involved in the Pre-operative Consultation?
Your comprehensive consultation includes:
- Symptom and lifestyle review: Understand how refractive error affects your daily activities
- Advanced imaging: Swept-source OCT, anterior chamber measurements, corneal topography and precise biometry
- Detailed eye examination: Assessment of vision, eye pressure, refractive error, cataract status and retinal health
- Corneal and endothelial assessment: Corneal topography and specular microscopy to measure endothelial cell count
- Discussion of lens options: Review monofocal, toric and monovision ICLs with honest pros and cons
- Risk and benefit discussion: Open conversation about success rates, complications and recovery expectations
- Personalised recommendation: Based on your eye health and lifestyle, we recommend the optimal lens type
- Informed consent: Ensure you fully understand your chosen procedure and expected outcomes
How Quickly Can I Return to Normal Activities?
Timeline varies individually, but generally:
- Driving: 1–2 weeks (once surgeon confirms good vision)
- Light work/reading: Day 1–3
- Desk work/screens: Week 1–2
- Exercise/walking: Day 2+
- Swimming/gym: Week 2+ (with goggles)
- Heavy lifting: Week 4+
- All normal activities: 4–6 weeks post-surgery
Your surgeon confirms activity clearance at follow-ups based on your individual healing.
What Happens if I Have Questions After Surgery?
Our team remains accessible throughout your recovery. You receive clear written instructions, emergency contact details available 24/7 for urgent concerns, and structured follow-up appointments and then annually. Early review of even minor symptoms allows prompt intervention. We offer accessible locations across London, Chelmsford and Hatfield, and any questions are answered promptly by your surgical team. Your safety and satisfaction are our absolute priority.
Is ICL Surgery Suitable for Younger Patients (Under 25)?
Eyes are still developing and prescriptions typically continue changing before age 25. Waiting until your prescription stabilises (no change >0.5D for ≥1 year) ensures the ICL targets the correct power. Once your prescription is stable, ICL is an excellent option for younger patients with active lifestyles and vision-critical work.
Is ICL Surgery Suitable for Older Patients (45+)?
Age alone is not a barrier to ICL surgery. However, beyond age 50, lens replacement (refractive lens exchange) often offers greater benefits because cataracts may be developing and a premium lens can address distance vision, near vision and presbyopia simultaneously. Ages 45–50 can be suitable candidates if they have excellent ocular health, accept reading glasses may still be needed, and are highly motivated for distance vision freedom. Your consultant will discuss whether ICL makes sense for your individual situation.
What If My Vision Doesn't Reach the Target Prescription?
In a small percentage of cases (~5%), the final prescription may not achieve the intended target. If a residual refractive error of 1 dioptre or more remains, enhancement options are available:
- Laser eye surgery: A precise, customised LASIK procedure to correct residual error
- ICL exchange: Replacement with a different-powered lens to fine-tune vision
Our experienced team guides you through the most suitable enhancement option based on your individual needs.
How Is Blue Fin Vision® Different from Other Private Eye Clinics?
Several factors distinguish our care:
- Consultant-led continuity: Your named surgeon performs assessment, surgery and aftercare, not different staff at each stage
- Advanced diagnostics: We use swept-source OCT and AI-powered vault prediction for optimal lens positioning
- Premium ZEISS equipment: Cutting-edge surgical precision and safety
- Luxury recovery: Private consultation and comfortable recovery spaces
- Rapid access: Surgery often within 4–8 weeks of enquiry, not months
- Audited outcomes: Transparent success rates ensuring quality assurance
- Multiple convenient locations: London, Chelmsford and Hatfield for easy access
- Lifetime aftercare: Included annual reviews forever at no extra cost
We combine premier standards with genuine, personalised care for each patient’s journey.
What Payment Options Are Available?
We offer transparent, upfront pricing with several payment options:
- Direct payment: Clear pricing with no hidden fees
- Finance plans: Flexible payment arrangements to make premium care accessible
- Consultation fees: Clearly stated upfront; can be deducted from surgery costs
Discuss payment options during your consultation – we’re committed to making world-class vision care financially manageable.
