Jorge L Alio1, Alessandro Abbouda2, Pablo Peña-Garcia3, Samira Huseynli2. 1. VISSUM Corporación Alicante, Alicante, Spain2Division of Ophthalmology, Universidad Miguel Hernández, Alicante, Spain. 2. Instituto Oftalmológico de Alicante, Universidad Miguel Hernández, Alicante, Spain. 3. Division of Ophthalmology, Universidad Miguel Hernández, Alicante, Spain.
Abstract
IMPORTANCE: This study confirmed the long-term outcomes of the ZB5M phakic intraocular lens (PIOL). OBJECTIVE: To evaluate the potential long-term risk associated with ZB5M PIOL implantation. DESIGN, SETTING, AND PARTICIPANTS: A retrospective, nonrandomized, consecutive cohort study of a total of 208 eyes implanted with ZB5M PIOLs at VISSUM Corporación Oftalmológica de Alicante between 1990 and 1996 identified through surgical records (208 eyes of 123 patients); 50 of these patients (97 eyes) had available records and follow-up. INTERVENTION: ZB5M PIOL implantation. MAIN OUTCOMES AND MEASURES: To evaluate the incidence and onset of each complication during the follow-up and risk factors and causes for loss of visual acuity. RESULTS: Mean (SD) preoperative spherical equivalent refraction was -19.36 (6.7) diopters and at the end of follow-up, it was -1.4 (2.6) diopters. Mean (SD) best-corrected visual acuity at the preoperative visit was 0.35 (0.2) decimal and at the end of follow-up, 0.56 (0.3) decimal. Mean (SD) endothelial cell density preoperatively and at the end of follow-up was 2783 (787) cells/mm(2) and 1921 (672) cells/mm(2), respectively. The incidence of cataract during the follow-up was 0.010 eye-year (EY); cornea decompensation, 0.001 EY; ocular hypertension, 0.008 EY; pupil ovalization, 0.020 EY; uveitis, 0.001 EY; and retinal detachment, 0.002 EY. CONCLUSIONS AND RELEVANCE: To our knowledge, this is the first study that describes the long-term outcomes and complications of ZB5M PIOLs and suggests increasing the postoperative follow-up examinations in patients older than 40 years, analyzing anterior chamber modifications, and recommends PIOL explantation in cases of an increase in the crystalline size.
IMPORTANCE: This study confirmed the long-term outcomes of the ZB5M phakic intraocular lens (PIOL). OBJECTIVE: To evaluate the potential long-term risk associated with ZB5M PIOL implantation. DESIGN, SETTING, AND PARTICIPANTS: A retrospective, nonrandomized, consecutive cohort study of a total of 208 eyes implanted with ZB5M PIOLs at VISSUM Corporación Oftalmológica de Alicante between 1990 and 1996 identified through surgical records (208 eyes of 123 patients); 50 of these patients (97 eyes) had available records and follow-up. INTERVENTION: ZB5M PIOL implantation. MAIN OUTCOMES AND MEASURES: To evaluate the incidence and onset of each complication during the follow-up and risk factors and causes for loss of visual acuity. RESULTS: Mean (SD) preoperative spherical equivalent refraction was -19.36 (6.7) diopters and at the end of follow-up, it was -1.4 (2.6) diopters. Mean (SD) best-corrected visual acuity at the preoperative visit was 0.35 (0.2) decimal and at the end of follow-up, 0.56 (0.3) decimal. Mean (SD) endothelial cell density preoperatively and at the end of follow-up was 2783 (787) cells/mm(2) and 1921 (672) cells/mm(2), respectively. The incidence of cataract during the follow-up was 0.010 eye-year (EY); cornea decompensation, 0.001 EY; ocular hypertension, 0.008 EY; pupil ovalization, 0.020 EY; uveitis, 0.001 EY; and retinal detachment, 0.002 EY. CONCLUSIONS AND RELEVANCE: To our knowledge, this is the first study that describes the long-term outcomes and complications of ZB5M PIOLs and suggests increasing the postoperative follow-up examinations in patients older than 40 years, analyzing anterior chamber modifications, and recommends PIOL explantation in cases of an increase in the crystalline size.
Authors: M E Sucu; S Cakmak; Y Yildirim; B Kepez Yildiz; G Yalçınkaya; N Kandemir Beşek; T Yasar Journal: Int Ophthalmol Date: 2020-09-11 Impact factor: 2.031
Authors: Virgilio Galvis; John F Villamil; María Fernanda Acuña; Paul A Camacho; Jesús Merayo-Lloves; Alejandro Tello; Sandra Lizeth Zambrano; Juan José Rey; Juan Vicente Espinoza; Angélica María Prada Journal: Graefes Arch Clin Exp Ophthalmol Date: 2019-10-28 Impact factor: 3.117