Clinical Ophthalmology Open Access Full Text Article Dovepress open access to scientific and medical research O r i G i n A L r E S E A r C H Evolution of visual performance in 70 eyes implanted with the Tecnis® ZMB00 multifocal intraocular lens Carlos Palomino Bautista David Carmona González Alfredo Castillo Gómez Hospital Universitario Quirón, Madrid, Spain Correspondence: Carlos Palomino Bautista Hospital Universitario Quirón, C/Diego de Velázquez 1, 28223 Pozuelo de Alarcón, Madrid, Spain Tel +34 902 151 016 Fax +34 915 183 232 Email cpalomino.mad@quiron.es Purpose: To evaluate the development of visual acuity, dysphotopsia phenomena, and subjective sensations in patients implanted with the Tecnis® ZMB00 (Advanced Medical Optics Inc, Santa Ana, CA) multifocal intraocular lens. Methods: In a sample of 70 eyes, distance and near visual acuity, with and without correction, contrast sensitivity, and patient satisfaction, were analyzed at 15, 30, and 60 days post- surgery. Results: Mean uncorrected distance visual acuity (logarithm of minimum angle of resolution) at 15, 30, and 60 days was 0.194 ± 0.054, 0.119 ± 0.026, and 0.076 ± 0.014 (P , 0.0001), respectively, and with correction, 0.051 ± 0.007 vs 0.041 ± 0.004 vs 0.022 ± 0.002 (P , 0.0001), respectively. At 60 days, 94.3% of eyes could read 1.00 close-up without correction. Patient satisfaction in terms of dysphotopsia effects and visual acuity was excellent. The mean contrast sensitivity was 1.64 ± 0.10 (logarithmic units) measured with the Pelli–Robson test. Conclusion: This type of multifocal intraocular lens was very effective at the distances analyzed, producing excellent objective and subjective results. Keywords: higher-order aberrations, diffractive multifocal intraocular lens, visual acuity, dysphotopsia Introduction In the last 20 years, our knowledge of the fundamental pathophysiological causes of the deterioration of visual function with age has advanced considerably. In particular, much is now known about contrast sensitivity as a parameter for evaluating the quality of a patient’s vision.1 Guirao et al2 and Glasser and Campbell3 showed that the pathogenesis of vision deterioration relies on an increase in the spherical aberration of the eye, with a loss of balance between corneal and lenticular aberration. In the young eye, the negative spherical aberration of the lens compensates for the positive spherical aberration of the cornea to produce a single retinal focal point. As the years pass, the lenticular spherical aberration becomes progressively more positive, while the corneal spherical aberration remains relatively stable.4 We have studied the one-piece Tecnis® ZMB00 intraocular lens (Advanced Medical Optics Inc, Santa Ana, CA). This lens offers a modified prolate anterior surface that adds −0.27 µm of spherical aberration to the eye, thus emulating the optics of the young eye. The lens uses a hydrophobic acrylic material with a high Abbe number of 55.5 Chromatic dispersion is lower in this material and can result in an improvement of up to 12% in contrast sensitivity compared with other materials,6 thus minimizing the impact of chromatic aberration (Figure 1). submit your manuscript | www.dovepress.com Dovepress http://dx.doi.org/10.2147/OPTH.S24425 Clinical Ophthalmology 2012:6 403–407 403 © 2012 Palomino Bautista et al, publisher and licensee Dove Medical Press Ltd. This is an Open Access article which permits unrestricted noncommercial use, provided the original work is properly cited.