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SEVİK, MEHMET ORKUN

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MEHMET ORKUN

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Author: TOKER, AYŞE EBRU × Subject: BILATERAL IMPLANTATION ×

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    Comparison of reading performance with low add bifocal and extended depth of focus intraocular lenses implanted with mini-monovision
    (SPRINGER, 2021) TOKER, AYŞE EBRU; Turhan, Semra Akkaya; Sevik, Mehmet Orkun; Toker, Ebru
    Purpose To evaluate reading performance, preferred reading distance, and spectacle independence in patients implanted with a low add multifocal or an extended depth of focus (EDOF) intraocular lens (IOL) after phacoemulsification. Methods In this prospective study, patients were randomized into two groups: the diffractive multifocal Tecnis + 2.75 D (ZKB00) IOL (Tecnis + 2.75 group; 15 patients) or the EDOF Tecnis Symfony (ZXR00) IOL (Symfony group; 14 patients) for bilateral implantation with mini-monovision. Reading performance parameters (reading acuity [RA], critical print size [CPS], and maximum reading speed [MRS]) were evaluated with MNREAD acuity charts at 40 cm, and preferred reading distances and spectacle independence for near activities were assessed preoperatively and at the postoperative 1st, 3rd, and 6th months. Results At the postoperative 6th month, binocular logMAR UNVA and DCNVA were significantly better in the Symfony group than in the Tecnis + 2.75 group (UNVA: 0.15 +/- 0.07 vs. 0.22 +/- 0.08,p = 0.046; DCNVA: 0.21 +/- 0.05 vs. 0.28 +/- 0.07,p = 0.043; respectively). There was no significant difference in reading performance parameters between the groups; however, the Symfony group preferred significantly closer reading distance than the Tecnis + 2.75 group (42.00 +/- 4.67 cm; 45.87 +/- 5.32 cm, respectively,p = 0.030). At the postoperative 6th month, 14.3% and 26.7% of patients reported that they needed spectacles, rarely or occasionally, for near activities in the Symfony and Tecnis + 2.75 groups, respectively (p > 0.05). Conclusions When implanted with mini-monovision, although functional near visual acuity and a high degree of spectacle independence at near distances were achieved with both IOLs, patients implanted with the EDOF IOL preferred closer reading distance than those implanted with the low add diffractive multifocal IOL.
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    Clinical outcomes with a low add multifocal and an extended depth of focus intraocular lenses both implanted with mini-monovision
    (SPRINGERNATURE) TOKER, AYŞE EBRU; Sevik, Mehmet Orkun; Turhan, Semra Akkaya; Toker, Ebru
    Objectives To compare the visual acuity, contrast sensitivity (CS), spectacle needs, photic phenomena, and quality of life parameters of patients bilaterally implanted with a low add multifocal (MIOL) or an extended depth of focus (EDOF) intraocular lens (IOL), both with intended mini-monovision. Methods In this prospective, randomized, comparative study, patients were randomized to receive either Tecnis +2.75 D (ZKB00) (MIOL Group, n = 15) or Tecnis Symfony (ZXR00) (EDOF Group, n = 14) for bilateral implantation with mini-monovision (-0.50 D). Binocular logMAR uncorrected visual acuities (UVA), monocular defocus curves, CS with CSV 1000-E, and Pelli-Robson Test (PRT), spectacle needs and quality of life parameters with NEI RQL-42 questionnaire were evaluated at postoperative 1, 3, and 6 months. Results Results of MIOL and EDOF Groups at postoperative month 6 are as follows: distance (6 m) UVA -0.03 +/- 0.05 and -0.05 +/- 0.06 (p = 0.938), intermediate (60 cm) UVA, 0.04 +/- 0.08 and -0.03 +/- 0.07 (p = 0.046); near (40 cm) UVA, 0.22 +/- 0.08 and 0.15 +/- 0.07 (p = 0.046); near spectacle needs, 26.7% and 14.3% (p > 0.05), respectively. Better visual acuity was achieved in the EDOF Group between the defocus range of -0.50 and -1.75 D (p < 0.05). No significant difference was found regarding photic phenomena and CS evaluated with CSV 1000-E between the two IOL groups at 6 months after surgery (otherwise there are differences at 1 and 3 months in favor of EDOF). However, EDOF Group performed better in mesopic CS evaluated with PRT (p < 0.05). Conclusions When implanted with mini-monovision better binocular uncorrected visual performance at intermediate and near distances achieved with EDOF than low add MIOL.