周边离焦设计框架眼镜在近视防控中的进展

Progress of peripheral defocus design framework eyeglasses in myopia control

摘要:

近视在世界各地越来越普遍，发病人群也逐渐扩大。多种治疗方法已经被用于近视防控，包括光学、药物、环境或行为等，但结果各不相同，而且缺乏标准化。周边离焦技术目前已有多项试验证明其对近视控制有一定的作用。基于这一技术，在中国的医疗和视光机构常见到多区正向光学离焦技术(DIMS)、高非球面微透镜技术(HAL)和同心圆带微柱镜技术(CARE)三种周边离焦设计的框架眼镜镜片。这些镜片在提供了中央区清晰视觉的同时，在周边提供了一定量的近视性离焦来控制近视的进展。文章目的是关注以上三种周边离焦设计镜片的设计原理和近视防控效果，并评价其在临床实践中的有效性。

Abstract:

Myopia is becoming more and more common all over the world, and the incidence of myopia is gradually increasing. Many treatments have been used to prevent and control myopia, including optics, drugs, environment or behavior, but the results are different and lack standardization. At present, many experiments have proved that peripheral defocus technology has a certain effect on myopia control. Based on this technology, three kinds of framed eyeglass lenses with peripheral defocus design, namely defocus incorporated multiple segments(DIMS), highly aspherical lenslets(HAL)and cylindrical annular reactive elements(CARE), are commonly used in medical and optometry institutions in China. These lenses provide not only clear vision in the central area, but also a certain amount of myopic defocus in the periphery to control the progression of myopia. This paper aims to focus on the design principle and myopia prevention and control effect of the above three peripheral defocus lenses, and evaluate their effectiveness in clinical practice.