人工晶状体多焦点与单焦点优劣之争

Debate on the advantages and disadvantages of multifocai and monofocal intraocular lens

超声乳化白内障吸除联合人工晶状体植入术是目前治疗白内障最有效的方法。传统的人工晶状体以单焦点人工晶状体为主，虽然术后可使患者恢复一定的远视力或近视力，但由于调节力的丧失，患者必须依赖眼镜来完成不同距离的工作，术后生活仍有诸多不便。多焦点人工晶状体的设计是近年来白内障领域的基础和应用研究热点，但是至今研究者仍然对其褒贬不一，多焦点和单焦点的优劣有以下3个主要的争议：第一，牺牲对比敏感度和增加视觉干扰以换取代偿调节力是否值得？第二，多焦点人工晶状体是否能够真正获得全程视力及摆脱对眼镜的依赖？第三，如何把握好多焦点人工晶状体的适应证才能发挥其优势。

Phacoemulsification and intraocular lens implantation is the most effective treatment of cataract. Traditional intraocular lens were mainly monofocal. Postoperative patients can return to a certain distance vision or near vision, but because of the loss of accommodative power, patients must rely on glasses to complete the work of the different distances, the postoperative life there is still a lot of inconvenience. In recent years, the design of muhifocal intraocular lens has been the focus of basic and applied research in cataract, but so far the researchers still could not have agreement with the strengths and weaknesses of the multifocal and monofocal intraocnlar lens. There are three major controversies ： First of all, whether it is worth the expense of contrast sensitivity and increased visual disturbance in return for compensatory adjustment？ Second, whether it is possible to really get the full range of vision and to get rid of dependence on glasses to use muhifocal intraocular lens？ Third, how to grasp the indications of multifocal intraocular lens to play to their strengths.