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Visual outcome and patient satisfaction after Mini WELL IOL implantation in emmetropic eyes: results at one month after surgery

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Session Details

Session Title: Extended Depth-of-Focus IOL Concepts

Session Date/Time: Monday 24/09/2018 | 08:00-10:30

Paper Time: 08:57

Venue: Room A4

First Author: : P.Talli ITALY

Co Author(s): :    E. Pedrotti   F. Selvi   A. Galzignato   E. Bonacci   T. Merz   G. Marchini     

Abstract Details


To evaluate the functional outcome and patient’s satisfaction after bilateral implantation of Refractive Extended Range of Vision Intra Ocular Lens (IOL) MiniWell (Sifi S.P.A. Catania, Italy).


Clinica Oculistica, Università di Verona. Azienza Ospedaliera Universitaria Integrata (AOUI) P.le A. L. Scuro, 1 – Verona (VR) – Italy


We implanted MiniWell IOLs in 30 eyes (15 patients) without any underlying ocular disease. Each patient had both IOLs implanted within one week. IOL power was calculated using the SRK-T formula with Lenstar Biometer, choosing IOL powers to achieve emmetropia. Patients were examined 1 months after surgery with uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA) at 4 m, 40 cm, 66 cm, and 80cm together with defocus curve, objective measures of optical quality (i.e. RMS and MTF evaluations by means of Hartmann-Shack aberrometry and Optical Quality Analysis System) and quality of life with NEI-RQL-42 score test.


All enrolled patients attended the follow-up visits. After 1 month from surgery, patients implanted with MiniWell IOLs obtained a mean BCVA and UCVA of respectively -0.05 and -0.04 LogMAR at 4m, 0.0 and 0.04 LogMAR at 80cm, 0.0 and 0.02 LogMAR at 66 cm, 0.1 and 0.08 LogMAR at 40cm. Mean ocular RMS was 0.23µm, mean MTF Score was 28.342. NEI-RLQ-42 questionnaire scores were 71.9 for dependence on correction scale, 82.4 for symptoms scale and 93.75 for glare scale.


IOLs EDOF are considered a valid choice to avoid pseudophakic presbyopia. MiniWell IOLs reached good results in emmetropic eyes: patients obtained good visual acuity and spectacle independence with reduced glare and other symptoms. RMS and MTF values suggest low aberrations with good contrast sensitivity. Mean UCVA and BCVA at 4 meters were comparable with other monofocal IOLs. The analysis of defocus curve suggested that post-operative antero-posterior shifts in IOL positioning have a reduced influence on UCVA. These IOLs should be considered a safe candidate for implantation in patients who prefer to achieve spectacle independence both for distance and near distances.

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