Objective:To evaluate the accuracy of the formula for calculating the power of implanted intraocular lenses in cataract patients with previous refractive correction surgery.Methods:This was an evidence-based medical research study. The Cochrane library, PubMed, CNKI, WanFang and Metstr databases were searched to collect all the studies reporting the accuracy of the intraocular lens calculation formula after refractive surgery. The search time was self-limited to November 2020. ADDIS software was used for data merging and mesh meta-analysis. The recording parameter is the probability that the predictive error rangefor refractive error after cataract surgery was within ±0.50 D and ±1.00 D. Based on ADDIS software, the statistical test is carried out by using the Node-Split Model.Results:A total of 10 studies were included,with 475 cases and 659 eyes. The results of Network meta-analysis showed that for cataract patients with previous myopic refractive surgery correction history, the most accurate formulas within the refractive error range of ±0.50 D and ±1.00 D were the Modify Hoffer Q and OCT formulas. The highest accuracy formulas for a refractive error range within ±0.50 D and ±1.00 D for hyperopic patients were HolladayⅡand Haigis. The Haigis formula was the most accurate for predicting refractive error of the range within±0.50 D and ±1.00 D for patients undergoing radial keratotomy.Conclusions:For cataract patients who have a history of refractive surgery, the calculation and prediction of intraocular lens power must be comprehensively evaluated based on their refractive state and the type of refractive surgery.
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