Clinical experience with implantation of the IOL with the asymmetrical rotation optic mplus MF-20

Purpose. The purpose of the work was to explore the results of implantation of the intraocular lens (IOL) with the asymmetric rotation optics Mplus MF-20 based on the following criteria that are the most important for a patient: visual acuity at various distances, spatial contrast sensitivity and nature of entoptic sensations. The authors examined 40 patients after bilateral implantation of MF-20. The testing two weeks after second eye surgery included monocular uncorrected visual acuity (UCVA) at a distance (5 m), near visual acuity (0.3 m) and at intermediate distances (0.6 m), and also spatial contrast sensitivity. The testing was carried out based on the black-and-white gratings at frequencies of 0.5; 1.0; 2.0; 4.0; 8.0; 16.0 cycle/degree. The contrast varied smoothly from 0.2 % to 100 %. A character of entoptic sensations was assessed using the VF-14 questionnaire. Conclusions. A high distance visual acuity was achieved in all clinical case reports. The near visual acuity (0.3 meters) allowed most patients to read a standard newspaper text in a good light. Visual performance at intermediate distances (0.6 m), namely a computer and smartphone screen reading of information, also did not cause any troubles. When analyzing data of spatial contrast sensitivity after MF-20 implantation compared to the monofocal aspherical hydrophilic IOL Ray One (Rayner) it was concluded that some differences at medium and high frequencies are not significant. Subjective perceptions of patients after the IOL MF-20 implantation are also positive. Only 30 % of respondents have reported mild negative light events in the form of haloes and flare spots in 2 weeks after surgery. Thus, the results obtained confirm the possibility of the widespread use of the IOL MF-20 with the asymmetrical rotation optic in clinical practice within the conditions of bilateral symmetrical implantation. Keywords: cataract, presbyopia, multifocal IOLs with asymmetric optics