In order to obtain a presbyopia-correcting IOL with a continuous range of vision, SIFI MedTech (Catania, Italy) recently developed Mini WELL®, a preloaded progressive multifocal aspheric IOL, which optical design increases the depth of focus to generate continuum foci. The in vitro optical quality of this lens has been assessed showing larger defocus tolerance at near distance vision (in comparison with diffractive lens) and a better optical quality at far vision with 4.5 mm aperture against both diffractive, and trifocal lens. Mini WELL® has been granted a CE-mark for use only in March 2014, but it has quickly gained pleasing evaluations in ophthalmology congress. On June 2015, verified that no publication on Mini WELL® clinical performance was yet available, four Italian Investigators have decided to collaborate in a retrospectively study. The collected sample is fully representative of Italian population, considering the total number of MINI WELL® delivered in Italy (150 lens on August 2015) and the range of involved sides (University Department, Ophthalmology Research Institute, Public Hospital and Private Clinics). The primary objective of the trial is to evaluate retrospectively the visual performance of the MINI WELL® in qualitative and quantitative terms of the progressive vision. The collected variables are: Uncorrected distance Visual Acuity (UCVA), Best Corrected Visual Acuity (BCVA), Best Corrected Near Visual Acuity (BCNVA), onset of halos, and onset of glare during night vision. In addition, are also evaluated: Monocular Distance-Corrected Contrast sensitivity without glare, Monocular and binocular reading speed with the best correction for distance and Monocular Defocus Curve under photopic conditions. The secondary outcomes are: ADE/SADE/USADE and AE/SAE. The cohort of subjects includes all patients submitted in the five involved Centers for the surgical procedure for cataract extraction or Refractive Lens Exchange (RLE) using the MINI WELL® with a pre-operative visit (from day - 30 to day -2 before surgery) and a post-operative follow up visit performed 30 days after implant (with a window of - 14 and + 28 days). The period of observation is from March 1st, 2014 to March, 31st, 2016, while the Data Collection period is from April, 30th, 2016 to July, 31st, 2016