Saratov JOURNAL of Medical and Scientific Research

Analysis of various toric intraocular lenses in terms of their effectiveness in correcting astigmatism during phacoemulsification surgery

Year: 2021, volume 17 Issue: №3 Pages: 605-610
Heading: Тhematic supplement Article type: Original article
Authors: Alnoelaty Almasri M.A., Stebnev V.S.
Organization: Samara State Medical University

Purpose: to evaluate the effectiveness of AT TORBI plate tactile toric intraocular lens (IOL) (Carl Zeiss Meditec AG, Jena, Germany) and AcrySof loop tactile toric IOL (Alcon Laboratories, Inc., Fort Worth, Texas, USA) forthe correction of astigmatism >0.75 D in patients after phacoemulsification surgery in terms of visual and functional results and rotation stability. Material and Methods. A prospective randomized controlled trial was conducted. This study involved 100 patients (200 eyes) with cataracts and pre-existing astigmatism of 0.75 D or more for implantation of plate tactile-toric (AT TORBI) or loop tactile-toric (AcrySof) lOLs. Depending on the type of implanted lens, the patients were randomly divided into two groups, each of which included 50 people (100 eyes). Postoperative examination was performed on the 3rd day after surgery, after 1 week, 1 month and 3 months. The effectiveness of each IOL in both groups was evaluated by measuring uncorrected visual acuity at a distance (UDVA), the best corrected visual acuity (VA) and the position of the IOL. Results. Three months after surgery, the average logarithmic UDVA index was 0.21 and 0.18 in groups I and II, respectively (p=0.7), the average residual cylindrical refractive error in the group I was 035 D, and in the group II was 0.4 D (p=0.64). It was found that the average rotation of the IOL in 3 months after surgery in group I was 3.42°, and in group II was 2.03° (p=0.25). Conclusion. The effectiveness of both lOLs is recognized as equally high when eliminating uncorrected VA, as well as when correcting pre-existing astigmatism in the range of 0.75-5 D. Both lenses also demonstrated resistance to rotation.

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