Effect of AcrySof versus other intraocular lens properties on the risk of Nd:YAG capsulotomy after cataract surgery:A systematic literature review and network meta-analysis

ObjectiveThe purpose of this study was to evaluate the impact of different intraocular lens materials (IOL) and optic edge designs on the incidence of Nd:YAG laser capsulotomy.MethodsRandomized controlled trials (RCTs) reporting incidence of Nd:YAG capsulotomy in patients with monofocal IOLs were identified for systematic literature review (SLR) using Cochrane methodology. A network meta-analysis was conducted under a Bayesian framework. Mean hazard ratios (HRs), 95% credible intervals, and one-sided p-values were estimated for Nd:YAG capsulotomy incidence by comparing AcrySof IOLs with a group of non-AcrySof hydrophobic acrylic, hydrophilic acrylic, silicone, and PMMA IOLs. Sensitivity analysis was conducted comparing the risk of Nd:YAG capsulotomy between sharp- and round-edged designs of the above IOLs.ResultsAcrySof IOLs had a lower risk of Nd:YAG capsulotomy compared to hydrophobic acrylic (HR: 2.68; 95% CrI: 1.41, 4.77; p ConclusionThe risk of Nd:YAG capsulotomy is lower in eyes implanted with AcrySof IOLs compared to non-AcrySof hydrophobic or hydrophilic acrylic IOLs. Sharp-edged AcrySof, PMMA, and silicone IOLs are comparable in terms of reducing the risk of Nd:YAG laser capsulotomy

Speech Enhancement using Adaptive Filter based on Evolutionary Algorithms

Speech signal enhancement is an important topic in speech processing, because the main problem in speech processing is the effect of interference noise in the signal, which is a major source of quality degradation.It is necessary to suppress the noise to maintain the quality of signal. This may be achieved by using Adaptive Filter. Adaptive noise cancellation is used various minimization techniques or adaptive algorithms like LMS, NLMS and RLS. These are Gradient based algorithm which is most commonly used due to simplicity in computation and easy to implement. These algorithms suffers from some problem like these are not suitable for multimodal error surface and it gives only one possible solution for each iteration according to generated error. The objective of this paper is to solve the problem of ANC, but these problems are not solved by conventional algorithm so here optimization algorithm is used. Optimization algorithm increased the probability of encountering the global optimum.All methods has been simulated in Matlab, and design results are clearly illustrated to show the superiority of this method