Enhancement following ICL surgery is not a reflexive response to any measurable residual refractive error. Minor residual prescriptions – particularly within 0.50 dioptres of plano – may not produce meaningful functional impairment and do not require surgical correction. ¹ Enhancement is a clinical decision, not a metric one, and it requires both objective criteria and patient-reported functional concern to be present before a second procedure is appropriate.
At Blue Fin Vision®, the threshold for enhancement consideration is a residual refractive error of 1.00 dioptre or more, combined with the patient experiencing a genuine functional limitation attributable to that error. Below that threshold, continued monitoring and optical correction – where needed – is the preferred approach. Above it, the case for laser enhancement on clinical grounds is substantive. ²
This threshold is not arbitrary. It reflects the clinical risk-benefit calculation inherent in any elective surgical intervention: the corrective benefit of laser applied to a residual 0.50 D myope is modest; the benefit in a patient with a 1.50 D residual prescription is clinically meaningful. Applying the same threshold regardless of the patient’s functional symptoms would be a departure from the individualised clinical decision-making that the Blue Fin Vision® consultation philosophy requires. ³
Patients should ask this question explicitly at their pre-operative consultation – not post-operatively when residual error has already been identified. Understanding the enhancement criteria in advance is part of the informed consent process.
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.
- Kohnen T, Maxwell WA, Holland S, Tetz M. Intraocular collamer lens for high myopia: results from the ICL in Treatment of Myopia (ITM) study. Ophthalmology. 2008;115(8):1392–1400. PMID: 18359068.
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?
