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Erika P. Lopez, Jr., Guadalupe Marquez, Jr., Daniela Pulido, Jr., Leonardo Garcia, Jr., Fernando Solorio, Jr., Eduardo Chavez, Sr.; Visual Outcomes of Multifocal Aspheric Diffractive IOL: a prospective study. Invest. Ophthalmol. Vis. Sci. 2012;53(14):1390.
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© ARVO (1962-2015); The Authors (2016-present)
To evaluate the visual performance of a multifocal aspheric diffractive intraocular lens (AT.LISA 809M TM).
This prospective, interventional, clinical investigation included 43 eyes of 26 patients with bilateral cataract, keratometric astigmatism <-1.00 D and without other intraocular diseases. Patients underwent cataract surgery with IOL implantation between May 2011 and November 2011 at Ophthalmology Institute "Fundación Conde de Valenciana" in Mexico City. Visual acuity was evaluated pre- and postoperatively. Contrast sensitivity was evaluated postoperatively with the Mars Letter Contrast Sensitivity test.
Mean age of patients was 65.35 years (53 to 78 years), 17 (65%) were female and 9 (35%) were males. Twenty two were right eyes and 21 left eyes. Seventeen patients had bilateral implants. Mean axial length was 22.97 ± 0.74 mm. The preoperative visual acuity (VA) at 6 m was 0.94 LogMAR. Significant improvement one month after surgery in uncorrected and corrected VA in all distances was observed (p<0.05) at 6 m, 40 cm, 50 cm, 60 cm, 70 cm and 80 cm, were 0.07, -0.26, 0.24, 0.19, 0.19 and 0 .26 LogMAR, respectively. Mean contrast sensitivity at first month was 1.34 logCS. The residual sphere was -0.05 D and the resudual cylinder was -0.09 D.
This is the first experience in Mexico with multifocal IOL AT.LISA 809M. The visual acuity at far (6 m) and near (40 cm) distances were better than intermediate distances and contrast sensitivity was in a functional range. We need more patients and a long term follow up to confirm this results.
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