Long-Term Results Of Bilateral Implantation Wavefront Shaping Presbyopia-Correcting Intraocular Lens In Cataract Surgery

To evaluate the results of bilateral Vivity IOL implantation from the point of view of postoperative refraction, postoperative visual functions, defocus curve, contrast sensitivity, and patient's subjective satisfaction.

Neovize, Eye Clinic, Brno, Czech Republic

This was a non-interventional research study of the postoperative refraction, visual acuity (VA), and quality of vision achieved after bilateral implantation of a wavefront shaping presbyopia-correcting intraocular lens six months after cataract surgery. The manifest refraction, uncorrected (UDVA), distance corrected VA (DCVA), and DCVA VA at near (40cm) and intermediate (60cm) distance were tested. Defocus curve and binocular mesopic contrast sensitivity (CS) were also tested. A patient-reported outcome questionnaire was administered. 

Ninety-one subjects completed the study. Overall, mean spherical equivalent refraction was -0.46D±0.67D of plano and -0.64±0.38D of the refractive cylinder. There was no statistically significant difference between the uncorrected and distance corrected VA at any distance. Mean logMAR binocular VA were (−0.04 ± 0.08) at 4 m, (0.2 ± 0.17) at 66 cm and (0.04 ± 0.11) at 40 cm. Defocus curve was significantly better for distance VA  than for intermediate and near VA, which did not differ significantly. Reported glare, halos, and starbursts were "not at all" or "a little" bothersome for more than 95% of subjects. 

The Vivity IOL provided patients with reasonable distance, intermediate vision, and near functional vision with low reported bother from glare, halos, or starbursts. This new type of IOL expands possibilities to correct presbyopia in cataract patients.