Temporal Refractive Bias Reduction And Vault Safety-Window Distribution After Eyecryl Phakic Iol Implantation: A Prospective Agreement Analysis
Published 2026 - 44th Congress of the ESCRS
Reference: POREF140 | Type: Free paper | DOI: 10.82333/6ar5-9740
Authors: Dr Hasnaa Lamari* 1 , Mr Maulik Ganatra 2 , Ms Katre nnada El bakkouri 3
1Ophthalmology ,Clinique al Bassar ,Mohammedia ,Morocco, 2Product management ,Biotech,Ahmedabad,India, 3Product management ,Biotech,Rabat ,Morocco
Purpose
To quantify early temporal refractive bias and evaluate vault safety-window distribution following Eyecryl Phakic IOL implantation.
Setting
Single-center prospective clinical series.
Methods
Consecutive eyes undergoing Eyecryl Phakic IOL implantation were analyzed. Expected postoperative spherical equivalent (SE) was derived from the manufacturer’s calculator. Achieved SE was measured at 1 week and 1 month. Prediction error (PE = achieved − expected), mean absolute error (MAE), standard deviation (SD), and 95% confidence intervals (CI) were calculated. Agreement was assessed using Bland–Altman analysis. Temporal refractive change between visits was evaluated. Vault was measured at 1 month and analyzed relative to the accepted safety range (250–750 µm).
Results
Twenty eyes had complete refractive data.
At 1 week, mean PE was −0.28 ± 0.25 D (95% CI −0.39 to −0.17), MAE 0.32 D, with 85% within ±0.50 D of expected SE.
At 1 month, mean PE improved to −0.17 ± 0.41 D (95% CI −0.35 to +0.01), MAE 0.36 D, with 70% within ±0.50 D. A mean hyperopic shift of +0.11 D was observed between visits, indicating partial reduction of early myopic bias. Bland–Altman analysis demonstrated narrow limits of agreement without proportional bias.
Vault at 1 month (n=21) measured 568.8 ± 174.1 µm (95% CI 494–643 µm); 81% of eyes were within 250–750 µm, with no low-vault cases observed.
Conclusions
Eyecryl Phakic IOL implantation demonstrated strong early refractive agreement with progressive reduction of initial myopic bias and predominantly optimal vault distribution. Temporal bias analysis provides a clinically meaningful framework for early postoperative evaluation of emerging posterior chamber pIOL platforms.