METHODS:The PubMed, The Cochrane Library, CNKI, Sinomed, Metstr, Wanfang Database were searched for Meta-analysis of the literature on the objective visual quality after multifocal intraocular lens implantation. The retrieval time limit is from the establishment of the database to December 31, 2019. The objective visual quality was evaluated based on the objective visual quality analysis system Ⅱ(OQAS Ⅱ), which included object scatter index(OSI), modulation transfer function cut off(MTF cut off), Strehl ratio(SR), predicted 100% contrast visual acuity(OV100%), predicted 20% contrast visual acuity(OV20%), and predicted 9% contrast visual acuity(OV9%).

RESULTS: A total of 8 articles met the inclusion criteria of this study, a total of 432 cases(567 eyes). Meta-analysis showed that there was significant difference between multifocal intraocular lens and monofocal control group in OSI \〖MD=0.66, 95% CI(0.42-0.90), P<0.05\〗, but there was no significant difference in MTF cut off \〖MD=-1.94, 95% CI (-5.58-1.70), P=0.30\〗, SR\〖MD=0.00, 95%CI (-0.02-0.02), P=0.87\〗, OV100% \〖MD=-0.02, 95%CI(-0.14-0.11), P=0.76\〗, OV20% \〖MD=-0.03, 95% CI(-0.14-0.08), P=0.60\〗, OV9% \〖MD= -0.01, 95% CI (-0.09-0.07), P=0.82\〗.

CONCLUSION: The increase of objective scattering after multifocal intraocular lens implantation may lead to the decrease of visual quality, and the other parameters have no significant difference with the control group. However, no patient follow-up was reported in the included studies. Due to the changes and adaptability after operation, the long-term evaluation of objective visual quality of patients after multifocal intraocular lens implantation needs further research.