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Kjell Gunnar Gundersen,1 Richard Potvin2 1IFocus Øyeklinikk AS, Haugesund, Norway; 2Science in Vision, Bend, OR, USACorrespondence: Kjell Gunnar GundersenIFocus Øyeklinikk AS, Sørhauggata 111, Haugesund, 5527, NorwayTel +47 808900Email kg@ifocus.noPurpose: To provide normative visual acuity and quality of vision data related to bilateral implantation of a wavefront shaping presbyopia correcting intraocular lens (IOL).Patients and Methods: This was a non-interventional research study of the refraction, visual acuity (VA) and quality of vision achieved after bilateral implantation of a wavefront shaping presbyopia correcting intraocular lens between 3 months and 12 months post-surgery. The manifest refraction, and uncorrected and distance corrected VA at near, intermediate and distance (40 cm, 50 cm, 66cm, 4 m) were tested. Binocular mesopic VA at 4m and uncorrected photopic low contrast (25%) VA at 4 m were also tested, the latter with and without a glare source. A patient reported outcome questionnaire was administered. Defocus curve testing with and without simulated myopia in the non-dominant eye was also tested (reported elsewhere).Results: Forty subjects completed the study. There was no statistically significant difference between the uncorrected and distance corrected VA at any distance. Mean logMAR binocular VAs were (− 0.07 ± 0.07) at 4 m, (0.00 ± 0.07) at 66 cm and (0.07 ± 0.11) at 40 cm. Uncorrected photopic low contrast VA was statistically significantly better without glare (0.09 ± 0.10) compared to with glare (0.44 ± 0.21, p < 0.01). Reported glare, halos and starbursts were “not at all” Or “a little” bothersome for more than 95% of subjects. Hazy vision and blurred vision were reported most often.Conclusion: The Vivity IOL provided patients with good distance and intermediate vision, and functional near vision with low reported bother from glare, halos, or starbursts.Keywords: non-diffractive, extended depth of focus, extended vision, cataract, presbyopia, quality of vision, wavefront shaping |
