What is Implantable Collamer Lens Surgery

Implantable collamer lens surgery comes in an advanced and increasingly popular alternative that delivers sharp, high-definition vision without permanently altering the cornea. Often referred to as the “implantable contact lens,” the ICL is placed inside the eye to correct refractive errors such as nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. It offers a safe, effective, and reversible solution for long-term vision correction, making it a top choice for those who aren’t ideal LASIK candidates.

If you wear glasses or contact lenses, you already know the everyday hassles smudged lenses, dry eyes, blurry vision in the rain, or simply forgetting where you put your specs. While traditional vision correction options like LASIK or PRK have helped millions achieve spectacle-free vision, they may not be suitable for everyone especially people with very high myopia, thin corneas, or chronic dry eye.

What is implantable collamer lens surgery?

ICL surgery is a type of refractive surgery designed to correct common vision problems like myopia, hyperopia, and astigmatism. Unlike LASIK or PRK, which reshape the cornea using lasers, ICL surgery involves the implantation of a synthetic lens—made from a biocompatible material called Collamer—inside the eye, between the natural lens and the iris.

The Implantable Collamer Lens acts like a permanent contact lens inside the eye, helping to focus light correctly onto the retina. The surgery is minimally invasive, does not involve removing corneal tissue, and the lens can be removed or replaced if necessary.

Who is an ideal candidate for implantable collamer lens surgery?

ICL surgery is ideal for individuals who :-

1. Are between 21 and 45 years old

2. Have stable vision prescriptions for at least one year

3. Have thin corneas or dry eyes, which may disqualify them from LASIK

4. Have moderate to severe myopia (-3.0 to -20.0 diopters)

5. Do not have cataracts, glaucoma, or other significant eye diseases

Before proceeding, a comprehensive eye examination is conducted to determine the exact eye measurements and ensure eligibility.

How is the implantable collamer lens surgery procedure performed?

ICL surgery is typically a 20-30 minute outpatient procedure performed under local or topical anesthesia. Here’s a step-by-step overview :-

Pre-Operative Preparation

About a week before surgery, a small hole (called a peripheral iridotomy) may be created in the iris using a laser to prevent fluid buildup after lens insertion.

Anesthesia and Eye Dilation

On the day of surgery, the eye is numbed with anesthetic drops, and the pupil is dilated.

Lens Insertion

A small incision (2.5-3 mm) is made at the edge of the cornea. The folded ICL is inserted through the incision and carefully positioned behind the iris and in front of the natural lens.

Final Adjustments

Once in place, the surgeon adjusts the lens for optimal positioning and allows the eye to heal naturally. In most cases, stitches are not required.

Post-Operative Care

Antibiotic and anti-inflammatory drops are prescribed to prevent infection and reduce inflammation.

Advantages of implantable collamer lens surgery

ICL surgery is gaining popularity due to several compelling benefits :-

High-Definition Vision

ICL provides sharp, clear vision, especially in low-light conditions—often better than LASIK for patients with high myopia.

Reversible and Removable

Unlike LASIK, the lens can be removed or replaced if needed, offering flexibility and peace of mind.

Preserves Corneal Integrity

Since no corneal tissue is removed, ICL is ideal for those with thin or irregular corneas.

UV Protection

The Collamer material contains a UV filter, which helps protect your eyes from harmful ultraviolet rays.

No Dry Eyes

ICL surgery does not disturb the corneal nerves, making it a great option for people prone to dry eye syndrome.

Quick Recovery

Most patients experience noticeable improvement within 24 hours, with minimal discomfort.

Risks and complications of implantable collamer lens surgery

While ICL surgery is considered safe and effective, like any medical procedure, it does carry some risks. Potential complications include :-

1. Increased intraocular pressure (IOP) due to improper fluid drainage

2. Cataract formation in rare cases due to lens contact with the natural lens

3. Night vision issues such as glare or halos, especially during the initial recovery

4. Infection or inflammation, although rare with proper hygiene and care

5. Lens rotation or displacement, which may require repositioning

Choosing an experienced ophthalmic surgeon significantly reduces the risk of complications.

What to expect after implantable collamer lens surgery

Immediate Post-Op Experience

You may experience mild discomfort, blurred vision, or sensitivity to light for the first few hours. An eye patch may be used temporarily to protect the eye.

First 24–48 Hours

Most patients notice a dramatic improvement in vision within a day. You will be advised to rest, avoid touching or rubbing your eyes, and wear protective sunglasses outdoors.

Follow-Up Appointments

Regular check-ups are essential to monitor healing and ensure the ICL is well-positioned. The surgeon may adjust medication or provide lubricating drops.

Full Recovery Timeline

While most visual improvement is rapid, complete healing may take a few weeks. You can usually resume non-strenuous activities within a few days.

Conclusion

Implantable collamer lens surgery is a cutting-edge vision correction procedure offering exceptional results with minimal risks. It is especially beneficial for people who are not suitable for LASIK due to high prescriptions, dry eyes, or thin corneas. With fast recovery, reversible implantation, and enhanced night vision, ICL surgery is becoming a preferred choice for many seeking long-lasting visual freedom.