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Implantable Collamer Lens (ICL)

Implantable Collamer Lens (ICL) has a 30-year history and is a reversible vision correction technology. Unlike traditional laser vision correction methods that follow the "subtraction principle" by removing parts of the cornea, ICL uses the "addition principle." Through a minimally invasive incision, an ICL lens is implanted to correct vision, similar to placing a contact lens inside the eye. If necessary, the ICL lens can be removed at any time without damaging the eye's structure.

Advantages of Implantable Collamer Lens (ICL)

Principles of Implantable Collamer Lens (ICL) Surgery

Implantable Collamer Lens (ICL) surgery employs minimally invasive techniques to implant a custom-made ICL lens based on the patient's prescription. The lens is placed in the anterior chamber of the eye, between the iris and the natural lens. Made from highly biocompatible Collamer material, the ICL lens does not cause any rejection by the body and does not displace or remove any ocular tissue.

Principles of Implantable Collamer Lens (ICL) Surgery

Implantable Collamer Lens (ICL) surgery employs minimally invasive techniques to implant a custom-made ICL lens based on the patient's prescription. The lens is placed in the anterior chamber of the eye, between the iris and the natural lens. Made from highly biocompatible Collamer material, the ICL lens does not cause any rejection by the body and does not displace or remove any ocular tissue.

Surgical Procedure for Implantable Collamer Lens (ICL)

The doctor first administers anesthetic eye drops to the patient's eyes to ensure there is no pain or discomfort during the procedure. Next, a small incision of approximately 3 millimeters is made in the cornea. Through this incision, a medical-grade gel is injected to protect the intraocular tissues. The pre-folded ICL lens is then implanted into the eye through the incision. Finally, the doctor ensures that the ICL lens is correctly positioned and makes any necessary fine adjustments.

Surgical Procedure for Implantable Collamer Lens (ICL)

The doctor first administers anesthetic eye drops to the patient's eyes to ensure there is no pain or discomfort during the procedure. Next, a small incision of approximately 3 millimeters is made in the cornea. Through this incision, a medical-grade gel is injected to protect the intraocular tissues. The pre-folded ICL lens is then implanted into the eye through the incision. Finally, the doctor ensures that the ICL lens is correctly positioned and makes any necessary fine adjustments.

Differences Between ICL and SMILE Laser Vision Correction

ICL Vision Correction vs. SMILE/SMILEpro Laser Vision Correction

Implantable Collamer Lens (ICL) is becoming increasingly popular for vision correction. But what are its advantages compared to the mainstream SMILE laser vision correction? Who is suitable for ICL? Dr. Michelle Wong, an ophthalmology specialist, explains these differences in detail in this video.

Suitable Candidates for Implantable Collamer Lens (ICL)

  1. Myopia: Up to 1,800 degrees; Hyperopia: Up to 1,000 degrees; Astigmatism: Up to 600 degrees.
  2. Age: 18-45 years.
  3. Suitable for individuals with thin corneas or stable keratoconus.
  4. Anterior chamber depth greater than 2.8 mm.
  5. Ideal for individuals in disciplined services, athletes...etc.
  6. Idela for frequent drivers, or those requiring excellent night vision.
Suitable Candidates for Implantable Collamer Lens (ICL)
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ICL Viva (ICL V6) for Presbyopia Correction

ICL Viva (ICL V6) is an Extended Depth of Focus (EDOF) implantable lens designed specifically for presbyopia correction. It is suitable for individuals without cataracts who have myopia and presbyopia. The EDOF technology creates an extended single focal point to enhance the depth of focus, broadening the range of clear vision and effectively improving intermediate and near vision.

Suitable Candidates for ICL Viva (ICL V6)

  1. Individuals with myopia and presbyopia, aged between 40-60 years
  2. Those with myopia up to 1,800 degrees and presbyopia
  3. Individuals with thin corneas or stable keratoconus
  4. Anterior chamber depth greater than 2.8 mm
  5. Those with presbyopia who require good near and intermediate vision for daily activities
適合ICL Viva (ICL V6)的人士
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Service Features

Clarity Eye Centre Provides Comprehensive Care for You

FAQ

  1. What is an Implantable Collamer Lens (ICL)?
    Implantable Collamer Lens (ICL) involves implanting a custom-made corrective lens inside the eye to directly correct vision. The ICL technology has been in use worldwide for over 30 years and has been performed in Hong Kong for more than a decade. Currently, it is available in over 80 countries and more than 2 million lenses have been successfully implanted globally, making it a rapidly growing trend in vision correction.
  2. Will the Prescription Rebound After ICL Surgery?
    ICL corrects vision by implanting a lens, without the need to remove corneal tissue, thus avoiding any weakening of the cornea. The lens is safe and stable, and for patients with a stable prescription, the likelihood of regression is lower compared to laser vision correction. However, vision correction surgery only addresses vision issues and cannot resolve health problems caused by myopia. Therefore, it is important to maintain good eye habits and have regular eye check-ups after the surgery.
  3. Why Do Ordinary Contact Lenses Need to Be Removed Daily, While ICL Does Not?
    The cornea needs oxygen, and the oxygen permeability of materials like silicone hydrogel used in contact lenses is insufficient for prolonged wear, potentially causing corneal hypoxia. In contrast, the principle behind implantable lenses is different; they are not placed on the corneal surface but implanted behind the iris inside the eye, eliminating the risk of corneal hypoxia.
  4. Can the ICL Lens Move Inside the Eye?
    The size of the ICL lens is custom-fitted to the patient's eye, and during surgery, it is placed between the iris and the natural lens to ensure it does not shift or move. Unless subjected to severe trauma, the likelihood of the ICL lens moving inside the eye is very low.
  5. Can Others See the ICL Lens from the Outside?
    No, because the EVO ICL is placed behind the iris and in front of the natural lens, it is not visible to others.
  6. How Long Does It Take for Vision to Recover After Surgery? Do I Need Someone to Accompany Me Home?
    Recovery time varies from person to person, but generally, most patients regain over 80% of their vision within 24 hours post-surgery. It is advisable to have a friend or family member accompany you home. Most patients achieve full recovery of vision within about a week.

Schedule a Vision Correction Seminar


Attend a seminar where an ophthalmologist or registered optometrist will explain details about SMILE laser vision correction and ICL implantable lenses. You will have the opportunity to ask questions about vision correction and receive an initial professional assessment on-site.