白内障手术方式的研究进展

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白内障是一种老年性致盲性眼病,由于遗传、老化、局部营养障碍、免疫与代谢异常、外伤、中毒、辐射等多种因素导致晶状体蛋白质变性而发生浑浊,透明度下降,从而阻扰光线投射在视网膜上,造成视物不清[1]。世界卫生组织(WHO)规定的白内障诊断范围为晶状体发生变性和混浊,变为不透明,以至矫正视力在0.7或以下者[2]。
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