Abstract Background To assess the clinical outcomes of Visian Implantable Collamer Lens (ICL) with a central port throughout 7 years follow-up. Methods Eighty-four eyes 52 patients were evaluated over follow-up period after V4c ICL implantation. Uncorrected (UDVA) and corrected (CDVA) distance visual acuities, refraction, intraocular pressure (IOP), endothelial cell density (ECD) vault analysed...