Phakic ICL – The Optimal Solution for High Myopia and Thin Corneas

Introduction

Severe myopia not only affects daily activities but also reduces long-term quality of life. People with myopia above -8.0D often face major difficulties in studying, working, and even in basic activities such as night driving. Meanwhile, many patients cannot undergo LASIK or SMILE due to thin corneas and a higher risk of complications. This forces many to live with glasses or contact lenses for the rest of their lives.

The introduction of Phakic ICL has changed the landscape of refractive treatment. It is a solution recognized by international ophthalmology associations, with millions of successful surgeries performed worldwide. In Vietnam, Hai Yen Eye Care is one of the pioneering centers offering this technique, helping patients regain clear vision without corneal damage.

What is Phakic ICL?

Phakic ICL leading in refractive treatment

Phakic ICL (Implantable Collamer Lens) is an ultra-thin, soft, and transparent biological lens made from Collamer®—a proprietary material that combines natural collagen with biocompatible polymer.

The unique aspect is that the lens is implanted inside the eye, positioned behind the iris and in front of the natural crystalline lens. Its mechanism works like adding an additional precise lens to correct the light path, ensuring that images focus properly on the retina.

Thanks to its advanced design, patients neither see nor feel the lens after surgery. It is also a method that does not harm the cornea, as there is no need to cut corneal tissue like in LASIK. For this reason, Phakic ICL is a safe option for patients with thin corneas or those concerned about dry eye.

Who is Eligible for Phakic ICL?

Not everyone is suitable for Phakic ICL surgery. Experts recommend the following conditions:

• Age: 21–45 years, with stable vision for at least one year.
• Myopia between -3.0D and -20.0D, with possible astigmatism from 1.0D to 4.0D.
• Anterior chamber depth (the space between the cornea and the lens) ≥ 3.0 mm.
• Corneal endothelial cell density appropriate for age.
• No severe eye diseases such as glaucoma, uveitis, or advanced cataract.

A comprehensive evaluation must be carried out by an ophthalmologist through in-depth examinations before deciding on Phakic ICL. At Hai Yen Eye Care, patients undergo a full diagnostic process with advanced imaging systems, ensuring accurate assessment of both myopia level and ocular structure prior to surgery.

The Surgical Procedure

Phakic ICL lens

Phakic ICL is a relatively quick procedure, usually lasting only 20–30 minutes. The main steps include:

1. Preoperative examination: refractive measurement, corneal mapping, anterior chamber depth evaluation, endothelial cell count, and related tests.
2. Surgery day: topical anesthetic drops are applied, and the surgeon makes a small corneal incision to insert the ICL lens.
3. Lens implantation: the lens is folded, inserted into the anterior chamber, and then unfolded in the correct position behind the iris.
4. Recovery: most patients notice visual improvement immediately after surgery. Within 1–2 days, normal activities can usually be resumed.

The entire process is painless, only causing slight discomfort, and is performed under strict sterile conditions by the surgeon.

Risks and Considerations

Although highly regarded for its safety, Phakic ICL may still present some rare risks, including:

• Increased intraocular pressure (glaucoma): caused by obstruction of aqueous humor flow.
• Cataract formation: a higher risk for patients with very high myopia or older age.
• Endothelial cell loss: requiring periodic monitoring to ensure corneal clarity.
• Glare or halos: may occur when driving at night, though in most cases symptoms diminish over time.

To minimize these risks, patients must attend scheduled follow-ups, maintain proper eye hygiene, and strictly follow postoperative medication instructions. With the long-term monitoring system at Hai Yen Eye Care, potential complications can be detected early and managed promptly.

Why Choose Hai Yen Eye Care?

Consultation at Hai Yen Eye Care Center

Hai Yen Eye Care is proud to be a trusted address with a team of ophthalmologists who have extensive experience in refractive surgery, particularly Phakic ICL. The center is equipped with international-standard medical technology, ensuring that the entire process—from consultation to surgery and postoperative care—is safe and precise.

• Personalized treatment plans for every patient.
• International-standard sterile operating rooms.
• Comprehensive postoperative care to ensure a smooth recovery.

Conclusion

Phakic ICL opens new opportunities for individuals with high myopia, thin corneas, or those who are not suitable candidates for traditional refractive methods. It is a safe choice that provides clear vision, quick recovery, and reduces the risk of dry eye complications. If you are looking for a long-term solution to free yourself from glasses or contact lenses, Phakic ICL is worth considering.

Hai Yen Eye Care is ready to accompany you on your journey to achieve clear, confident vision, enhancing your daily life, studies, and work.