Visual functions after cataract surgery with implantation of different types of intraocular lenses

Author(s):  A.V. Vinnitskiy, Komi republic hospital, Syktyvkar, Russia, Andvinnit@gmail.com

D.A. Vinnitskiy, Komi republic hospital, Syktyvkar, Russia, Denvinnit@gmail.com

Issue:  Volume 40, №26

Rubric:  Clinical Medicine

Annotation:  In this article were compared visual outcomes in patients implanted with mono- and multifocal intraocular lens (IOL) after cataract surgery. Clinical study included 90 cases of patients who underwent cataract surgery and were divided into three groups: group 1, including 30 eyes implanted with the monofocal IOL (Miol-2); group 2, including 30 eyes implanted with the bifocal IOL (Miol-Akkord) and group 3, including 30 eyes implanted with the trifocal IOL (Miol-Rekord). Visual acuity, contrast sensitivity function and quality of life were assessed during the follow up period. In group of monofocal IOL significant improvement was observed in the distance visual acuity (0.82±0.02), with near visual acuity and intermediate visual acuity regressing to (0.32±0.05) and (0.25±0.01) respectively. In group of bifocal IOL significant improvement in both distance visual acuity (0.76±0.08) and in near visual acuity (0.64±0.18) was observed, with the intermediate visual acuity regressing (0.45±0.03). Trifocal IOL showed better outcomes in the distance visual acuity (0.74±0.01) and in near visual acuity (0.58±0.06) as well as in intermediate visual acuity (0.6±0.04). After implantation of trifocal IOL, however, there was significant reduction in scopatic contrast sensitivity in patients, “Halo-effects” appearing. Postoperatively all patients with IOL implantation reported to be highly satisfied with the outcomes of the procedure.In comparison with a monofocal IOL, a multifocal IOL provides a wider range of functional vision for different distances

Keywords:  cataract, Intraocular lens, multifocal intraocular lens, bifocal intraocular lens, trifocal intraocular lens, visual acuity, scopatic contrast sensitivity

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