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Session Title: Phakic IOL Implantation I
Session Date/Time: Tuesday 08/10/2013 | 14:00-16:00
Paper Time: 15:18
Venue: Main Lecture Hall (Ground Floor)
First Author: : M.Garcķa-Fernįndez SPAIN
Co Author(s): : D. Almanzar R. Montés-Micó J. Alfonso
To evaluate the functional outcomes and complications associated with -20 diopters (D) phakic lenses ICMV4 implantation for the correction of high myopia, and to determine the minimum vault considered as secure for the prevention of anterior subcapsular cataract (ASC) development.
Instituto Oftalmológico Fernįndez-Vega, Oviedo, Spain
A retrospective, observational study that comprises patients who underwent implantation of -20 D ICMV4, between January 2006 and January 2010. The main analyzed variables were: Best Corrected Visual Acuity (BCVA), Spherical Equivalent (SE), intraocular pressure (IOP), vault, and lens status.
60 eyes of 44 patients were analyzed (28 female, 16 male), mean age of 35.08± 7.08 years. Mean follow-up was 24 months. Statistically significant improvement in BCVA (p < 0.05) and SE (p < 0.05) were observed after surgery. Safety index was 1.29±0.30. Not statistically significant differences were found regarding IOP, and no patient required surgery nor chronic antihypertensive treatment. Mean postoperative objective vault (Visante OCT) was 474.11±210.18 microns (µ). None of the eyes showed central contact between ICL and crystalline, and 10 eyes showed peripheral contact. All these 10 eyes had a central vault between 150 and 260 µ, and only 2 developed cataract. No eyes with a central vault of more than 260 µ showed peripheral contact nor ASC cataract.
Implantation of ICMV4 with a power of -20 D is a safety technique with excellent functional outcomes, and low index of complications in the long-term. We may look for a central vaulting of more than 260 microns in order to prevent from peripheral contact between the ICL and the crystalline, and subsequently, from ASC development.
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