Optical and Visual Outcomes of a New Refractive Extended Depth of Focus Intraocular Lens
Belén Alfonso-Bartolozzi, Irene Martínez‐Alberquilla, Luis Fernández-Vega-Cueto, Fátima Cuéllar, Fidel Vega, Marı́a S. Millán, David Madrid‐Costa, José F. Alfonso
Abstract
PURPOSE: To characterize the optical design and analyze the optical quality and halo induced by the new extended depth of focus (EDOF) TECNIS PureSee intraocular lens (IOL) (Johnson & Johnson Surgical Vision) and to evaluate its clinical performance. METHODS: The power profile of the TECNIS PureSee was measured with the NIMO TR1504 device (LAMBDA-X). The through-focus modulation transfer function area (TF-MTFa) metric from +2.00 to -4.00 diopters (D) and the halo induced by the IOL in the best focus plane for distance vision (0.00 D), were assessed for 2-, 3-, and 4.5-mm aperture diameters at the IOL plane. The clinical evaluation in a cohort of patients included postoperative refraction, visual acuities, defocus curve, and subjective symptomatology. RESULTS: The power profile shows distinct zones that meet relatively smoothly. The largest power change occurs in the central zone of the lens. The TF-MTFa curves showed an increase in depth of focus for smaller pupils. Larger pupils resulted in smaller, lower-intensity halos. For 2-, 3-, and 4.5-mm pupils, halo sizes were 18.64, 14.73, and 13.23 arcmin, respectively, and normalized energies were 0.55, 0.46, and 0.42, respectively. Clinical assessment yielded excellent visual and refractive outcomes, a depth of field from +1.00 to -2.00 D with visual acuities better than 0.2 logarithm of the minimum angle of resolution, and with almost no dysphotopic symptoms. CONCLUSIONS: .