Synthesis of the Literature on Visual Acuity and Complications Following Cataract Extraction With Intraocular Lens Implantation

摘要: Objective: To better define the effectiveness and risks of modern cataract surgery. Design: Meta-analysis (formal systematic identification, selection, review, synthesis) published literature. Patients: Patients described in 90 studies between 1979 1991 that addressed visual acuity (n=17 390 eyes) or complications (n=68 316 following standard extracapsular extraction with posterior chamber intraocular lens implantation, phacoemulsification intracapsular flexible anterior implantation. Main Outcome Measures: The proportion eyes postoperative Snellen 20/40 each 18 complications. Results: pooled percentage (weighted by sample size) was 95.5% (95% confidence interval [CI], 95.1% to 95.9%) among without preexisting ocular comorbidity 89.7% CI, 89.3% 90.2%) for all eyes. experiencing size and, when pertinent, quality score individual but not adjusted variation duration follow-up) ranged from 0.13% endophthalmitis 19.7% capsule opacification. Pooled proportions other were as follows: bullous keratopathy, 0.3%; malposition/dislocation, 1.1%; clinically apparent cystoid macular edema, 1.5%; retinal detachment, 0.7%. results most similar surgery performed via vs extraction, although comparisons outcomes these procedures should be interpreted caution. Conclusions: literature indicates yields excellent free complications, is a very safe procedure regardless technique used.