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RESEARCH PRODUCT

Visual Performance after AcrySof ReSTOR Aspheric Intraocular Lens Implantation

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Purpose: To evaluate distance, intermediate and near visual performance in patients who had undergone implantation of the multifocal aspheric AcrySof ReSTOR intraocular lens (IOL). Methods: Binocular best distance corrected visual acuity (BCVA) at high and low contrast [4 m], best distance corrected near visual acuity (BCNVA) [40 cm], intermediate visual acuity [80 and 60 cm], and distance contrast sensitivity (CS) under photopic [85 cd/m2] and mesopic [3 cd/m2] conditions, were measured in 36 eyes that underwent implantation of the AcrySof ReSTOR Aspheric IOL (SN6AD3). Results: At the 3-month postoperative visit, binocular BCVA was -0.058±0.091, 0.200±0.079, and 0.258±0.071 logMAR, for 100%, 25% and 12.5% of contrast, respectively. Binocular BCNVA was -0.025±0.062 logMAR. Intermediate visual acuity varied significantly as a function of the distance to the test (P<0.01), but all patients showed 20/25 or better visual acuity at any distance. Photopic CS was within the standard normal range. Under mesopic conditions CS was lower particularly at higher spatial frequencies compared to photopic conditions. Conclusions: The AcrySof ReSTOR Aspheric IOL provide good high-contrast visual acuity at both distance and near; and CS at photopic and mesopic conditions. Intermediate vision is improved in relation to that found with the spherical AcrySof ReSTOR model.