A New Refractive Intraocular Lens with Extended Depth of Focus: the First Implantation experience

Purpose. Analysis of short-term clinical and functional results of implantation of a new refractive IOL with extended depth of focus.

Materials and methods. The study included 20 patients (31 eyes) after bilateral (11 patients) or monolateral (9 patients) implantation of the TECNIS PureSee® IOL, model DEN00V (Johnson and Jonson, USA) with an average follow-up period of 2.6 ± 0.5 (2–4) months. In all cases, IOL implantation was preceded by cataract phacoemulsification or clear lens removal. Women accounted for 65 % (n = 13), men — 35 % (n = 7). 

Results. There was a significant (p < 0.05) increase in UCNVA from 0.21 ± 0.03 to 0.65 ± 0.11, UCIVA from 0.24 ± 0.05 to 0.89 ± 0.13, UCDVA from 0.27 ± 0.05 to 0.96 ± 0.15, BCIVA from 0.52 ± 0.08 to .97 ± 0.19 and BCDVA from 0.67 ± 0.15 to 1.0 ± 0.14 before surgery and after 1 month of observations, respectively. The BCNVA increased from 0.54 ± 0.09 to 0.79 ± 0.14 (differences are significant at the trend level, 0.05 < p < 1.0). After implantation of the TECNIS PureSee® IOL, a decrease in the spherical equivalent of refraction was shown from -2.5±1.2 in the preoperative period to-0.14 ± 0.69 during the follow-up period of 1 month. In 2 out of 20 patients (10 %), permanent or periodic side optical phenomena were detected, of which 1 patient (5 %) had glare and 1 (5 %) had halo. The patients did not complain on difficulties in the night driving. Only one of 20 patients (5 %) required a reading glasses correction. All 20 patients rated the result of the operation as “excellent” and would recommend the implantation of this IOL to their friends and relatives. 

Conclusion. The paper presents the first experience in the Russian Federation of implantation of refractive with extended depth of focus in 20 patients (31 eyes). The results obtained demonstrate the high efficiency of this IOL for vision correction at all distances and the low frequency of side optical phenomena, which led to high patient satisfaction. To expand the indications for implantation of the studied IOL, further comparative studies with other models of monoand multifocal IOLs, as well as EDOF IOLs, are necessary.

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