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Long-term stability and safety of implantable collamer lens implantation to correct high myopia: multi-center French study

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Session Details

Session Title: Phakic IOLs

Session Date/Time: Monday 09/10/2017 | 08:30-10:20

Paper Time: 08:48

Venue: Meeting Center Room I

First Author: : A.Cassan FRANCE

Co Author(s): :    B. Cochener   E. Hachet   P. Levy   M. Assouline   P. Founie   L. Lesueur     

Abstract Details


Retrospective evaluation of efficacy and safety of Implantable Collamer Lens (ICL  (Staar) in the V4 version available since 2011 for the correction of high myopia, in a multicenter French cohort.


Centre Hospitalier Universitaire, Brest. Clinique Lepois, Nancy. Centre Ophtalmologie, Montpellier. Hôpital Purpan, Toulouse. Centre Ophtalmologique Etoile, Paris. Centre d’ Ophtalmologie, Toulouse.


7 surgeons from 7 different sites shared their retrospective data in a cohort of 240 patients implanted with ICL between 2011 and 2016. Among them, 191 patients (359 eyes) received an ICL V4c lens. Uncorrected visual acuity (UCVA), manifest refractive spherical equivalent (MRSE), endothelial cell count (ECC), intraocular pressure (IOP), slit lamp observations and anterior OCT changes were collected at 1,2, 3 and 4 years after surgery.


Mean UCVA was -0.05 LogMAR (unchanged over all collected postop visits) and the mean spherical equivalent (SE) was -0.30, -0.30, -0.08 and -0.10 D respectively after 1, 2,3 and 4 years postoperatively. Mean chronic EC loss from preoperative to 1,2,3 and 4 years postoperatively -4.16%, -1.18%, - 0.2% and -0.24% respectively. Mean IOP changed slightly from preoperative 14.69 mmHg to 14.73, 15.45, 15.80 and 14.70 mmHg at 1,2, 3 and 4 years postoperatively. 6 cases report anterior subcapsular cataract (4 cases after 1 year and 2 cases after 2 years). Only 1 case required ICL explantation and cataract extraction (V4b model).


Retrospective long-term data shows a stable UCVA and MRSE between the visits of 1,2,3 and 4 years postoperatively. EC loss was higher (-4.16%) after 1 year, but shows a minimal decrease over the following years. IOP also remains stable over time. 6 cases report anterior subcapsular cataract, but only 1 case required ICL explantation and cataract extraction (with V4b, ICL without CentalFlow technology). The ICL shows to be an effective and safe procedure for the treatment of high myopia.

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