The timing of enhancement following ICL surgery is governed by a single clinical principle: the refraction must be stable before a second surgical intervention is planned. Laser enhancement applied to a refractive state that has not fully settled will produce an outcome that is accurate at the time of surgery but inaccurate once the eye reaches its final equilibrium. Premature enhancement replaces one refractive error with another. ¹
At Blue Fin Vision®, enhancement is not considered until the refraction has been documented as stable for a minimum of three to four months following primary ICL surgery. This period allows for the resolution of any surgically induced oedema, the stabilisation of corneal curvature, and the settling of the effective lens position. Only once two consecutive refractions over this interval are concordant – and the residual error meets the functional and dioptric thresholds – is enhancement planning initiated. ²
The three-to-four-month window is a minimum, not a target. Patients who show refractive variability beyond this period are observed until stability is confirmed, however long that requires. The clinical cost of waiting longer than necessary is negligible; the clinical cost of enhancing prematurely is a second error requiring a third procedure. ³
Patients should confirm this timeline at their consultation – and be cautious of practices that offer enhancement at six to eight weeks, which is not consistent with evidence-based refractive practice.
References
- Ganesh S, Brar S. Clinical outcomes of phakic intraocular lens implantation for the correction of high myopia with three years of follow-up. Clin Ophthalmol. 2013;7:2011–2021. PMID: 24204123.
- Packer M. Meta-analysis and review: effectiveness, safety, and central port design of the intraocular collamer lens. Clin Ophthalmol. 2016;10:1059–1077. PMID: 27390517.
- Kamiya K, Shimizu K, Igarashi A, Komatsu M. Four-year follow-up of posterior chamber phakic intraocular lens implantation for moderate to high myopia. Arch Ophthalmol. 2009;127(7):845–850. PMID: 19597104.
Related Topics
- ICL Surgery Checklist
- Are You on the GMC Specialist Register for Ophthalmology?
- Does Your Surgeon Hold the CertLRS Qualification?
- How Many ICL Procedures Has Your Surgeon Performed?
- Can You Show Me Your Refractive Outcome Data?
- Is Surgery Performed in a Proper Hospital Theatre with Laminar Airflow?
- What Is My Pre-Operative Endothelial Cell Count?
- How Often Will ECC and Vault Be Monitored, and Is This Included?
- What Vault Are You Targeting?
- Does the Clinic Have Access to Laser Eye Surgery for Enhancement?
- Which ICL System and Calculator Do You Use?
- What Happens If I Develop a Cataract Within Two Years?
- What Is the Arrangement If Cataract Develops Between Two and Ten Years?
- Have You Performed Cataract Surgery in an Eye with an Existing ICL?
- How Do You Manage Biometry Calculations in Post-ICL Eyes?
- What Happens If My Myopia Continues to Progress?
- At What Level Would Enhancement Be Considered?
- When After Surgery Would Enhancement Be Performed?
- Who Performs the Enhancement – the Same Consultant?
- Is Laser Enhancement Included in the Price?
- Is Sedation Available, and What Does It Cost?
- Is Oral Diazepam Available for Anxious Patients?
- What Is the Minimum Stay Required Near the Clinic?
- Will You Identify a Named Local Ophthalmologist Before Surgery?
- How Will Annual Vault and ECC Monitoring Be Arranged If I Live Far Away?
