COMPARISON OF VISUAL OUTCOMES AFTER IMPLANTING MONOFOCAL & MULTIFOCAL INTRAOCULAR LENS IN CATARACT PATIENTS

Review Article

SALT Journal of Scientific Research in Healthcare, Volume 4, Issue 1, Page 84-97, Published on 15^th June 2024, https://doi.org/10.56735/saltjsrh.ms2404018497

ABSTRACT

Objective: This review compares the quality of life, visual outcomes, and independence from spectacles of patients who underwent bilateral cataract removal and received AcrySof IQ ReSTOR toric or nontoric multifocal intraocular lenses (IOLs) versus those who received nontoric monofocal IOLs from the commercial market. Design: Systematic literature review and meta-analysis of randomized controlled trials. Methods: In this review, the effects of AcrySof IQ ReSTOR toric or nontoric multifocal intraocular lenses (IOLs) versus commercially available nontoric monofocal IOLs after bilateral cataract extraction are assessed with respect to visual outcomes, spectacle independence, and quality of life. Randomized patients were disguised as observers and technicians, and the trial was carried out at 20 sites around Europe. Patients were assigned to receive either monofocal (nontoric alone) or multifocal (nontoric or toric, as needed) IOLs. Main Outcome Measures: Comparative evaluation of the visual quality in patients who had Tecnis® monofocal (ZCB00) and multifocal (ZMB00) intraocular lenses (IOLs) was the aim of this study. The evaluation took into account the lenses’ optical quality as determined in vitro with the use of an eye model. Of the 122 patients in the research, 44 had monofocal IOLs implanted, and 78 had multifocal IOLs. A number of visual measures were assessed, such as contrast sensitivity (CS) and visual acuity (VA). Using an eye model on a test bench, the optical quality of the IOLs was evaluated in three focal planes (near, middle, and far). The modulation transfer function’s (AMTF) area under the curve was the main indicator of optical quality. A thorough evaluation of the optical and visual performance of these two varieties of intraocular lenses will be provided by the sections that follow, which will analyze the measurement results and their consequences. Results: An important criterion for assessing visual quality was contrast sensitivity, which showed a lot of overlap between the multifocal and monofocal groups. The monofocal group did have a tiny edge in Pelli- Robson contrast sensitivity, but it was not very noticeable. Finally, individuals who had multifocal ZMB00 IOLs showed significantly increased near and intermediate visual acuity while maintaining distance visual acuity equivalent to those who underwent monofocal ZCB00 IOL use. Conclusions: To sum up, the research offers strong proof that monofocal and multifocal IOLs have positive clinical results. Patients really enjoy the improved uncorrected visual acuity and increased spectacle independence that multifocal IOLs provide, making them stand out from the competition. When choosing the best intraocular lenses (IOLs) following cataract surgery, doctors and patients may use the study’s findings as a guide to make judgements that best meet their individual visual and lifestyle needs.

Keywords: Bilateral cataract surgery, Multifocal vs. monofocal IOLs, Visual acuity, Contrast sensitivity, Spectacle independence,