Preliminary results of clinical assessment of correction of high refractive errors with using phakic intraocular lenses

    Abstract

    Preliminary results of clinical assessment of correction of high refractive errors with using phakic intraocular lenses

    N.N. Zaynutdinov, A.F. Yusupov, M.Kh. Karimova, Kh.M. Kamilov

    Republican Specialized Scientific and Practical Medical Center of Eye Microsurger y, Tashkent, Uzbekistan
Center for the Development of Professional Qualifications of Medical Workers, Tashkent, Uzbekistan

    Purpose. To evaluate initial clinical outcomes after implantation phakic IOLs (ICL and toric ICL) to patients with high refractive errors during next post-op 6 months period.

    Material and methods. In this retrospective, observational study, 112 eyes of 60 patients had been investigated after implantation VICM5 and VTICM5 models of phakic IOLs. In early stages of investigation, the main clinical outcomes of this study were uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), ICL vault, intraocular pressure, and development of any kind early post-op complications. In this study, safety and efficacy indexes and all patients’ postoperative outcomes have been evaluated at 1 day, 1 week, 1, 3 and 6 months in post – operative period.

    Results. Totally 112 eyes of 60 patients had underwent VICM5 and VTICM5 models of PIOL implantation in NAZAR Eye Center from January 2020 to December 2022. These patients had been divided into two groups. The first group A has contained 30 patients with 58 eyes (the mean age of patients was 27.52±6.61). In this group, the mean preoperative manifest spherical equivalent (MSE) was –10.59±3.41 D and manifest cylinder (MC) was –1.29±0.51 D respectively, which postoperative spherical refractive measures reduced to –0.92±0.37 D and cylinder measures reduced to –0.77±0.39 D. The second group B has contained 30 patients with 54 eyes (the mean age of patients was 28.34±6.64). In this group, the mean preoperative manifest spherical equivalent (MSE) was –9.85±2.65 D and manifest cylinder (MC) was –3.19±0.79 D respectively, which postoperative spherical refractive measures reduced to –1.18±0.56 D and cylinder measures reduced to –0.53±0.1 D. The mean IOP was 16.30±1.85 mmHg preoperatively. The mean IOP has changed until 15.44±1.76 mmHg during six months post-op period.

    Conclusion. Spheric models of phakic IOLs VICM5 and and toric VTICM5 ICL implantation are a safe, effective and alternative refractive surgery for correction of high refractive errors (high myopia and myopic astigmatism) for patients with thin cornea and several contraindications for laser correction.

    Key words: high refractive errors, phakic intraocular lens, implantable collamer lens, visual acuity, high myopia, intraocular correction, intraocular pressure

    For quoting: Zaynutdinov N.N., Yusupov A.F., Karimova M.Kh., Kamilov Kh.M. Рreliminary results of clinical assessment of correction of high refractive errors with using phakic intraocular lenses. Point of view. East – West. 2024;11(4): 18–27.

    DOI: https://doi.org/10.25276/2410-1257-2024-4-18-27

    Corresponding author: Nazim N. Zaynutdinov, znazim@yandex.ru