[The importance of neuroadaptation after multifocal intraocular lens implantation].

Multifocal intraocular lens (MIOL) can help cataract patients get a full range of vision, restore binocular stereopsis, improve pseudo-accommodation power, and correct regular corneal astigmatism with limits. However, MIOL also have shortcomings, including decreased contrast sensitivity, night glare, halos and other negative dysphotopsias, despite strictly controlled indications. Sometimes dysphotopsia can be relieved spontaneously after surgery in a period of time. During this process neuroadaptation plays an important role. This article explains the concept and mechanism of neuroadaptation, the location of neuroadaptation in the central nervous system, cognitive training, the preoperative evaluation of MIOL implantation, and the treatment for postoperative dissatisfaction. Correct understanding of the important role of neuroadaptation will provide theoretic foundation for cataract specialists and facilitate the handling of complications after MIOL implantation. (Chin J Ophthalmol, 2021, 57: 6-10).