Visual Performance after AcrySof ReSTOR Aspheric Intraocular Lens Implantation

Abstract

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/m 2] and mesopic [3 cd/m 2] 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.