浅谈非球面人工晶状体的临床应用

Clinical Application of Aspheric Intraocular Lens

目的通过非球面人工晶状体植入术后视功能的变化,观察治疗效果,提出治疗建议,客观评价非球面人工晶状体的临床作用。方法从眼球面像差的特性,非球面人工晶状体的设计及矫正目标,非球面人工晶状体临床应用注意事项,非球面人工晶状体的视觉质量评价等方面进行分析。结果虽然非球面人工晶状体眼术后的高阶像差低于球面人工晶状体,但其视力和对比敏感度的结果并不完全与之相对应。由于目前我们对人眼波前像差的认识还不够深入,检测仪器不够完善,各阶像差与视功能之间的关系尚需进一步的研究。结论正常瞳孔下非球面人工晶状体眼与球面人工晶状体眼相比,非球面人工晶体可以有效减少球面像差,提高部分空间频率的对比敏感度,使患者拥有更好地视觉质量,但其不能体现减少术眼后高阶像差的优势。

Objective Through the changes of visual function after implantation of aspheric intraocular lens（IOL）observed treatment effect,treatment recommendations,and objective evaluation of non spherical intraocular lens（IOL）clinical effect. Methods From the ocular wavefront aberration characteristics,the design of aspheric intraocular lens and correctional goal and clinical application of aspheric intraocular lenses note,aspheric intraocular lens visual quality evaluation were analyzed. Results Although the high order aberrations of the patients with non spherical intraocular lens were lower than that of the spherical intraocular lens,the visual acuity and contrast sensitivity were not completely corresponding with the results. Because at present we of wavefront aberration of understanding is not deep enough,detection equipment is not perfect,aberration and depending on the relationship between function still need to further study. Conclusion With normal pupil non compared to spherical intraocular lens eyes and spherical intraocular lens,aspheric intraocular lens can effectively reduce the spherical aberration,improve partial spatial frequency contrast sensitivity,so that patients have a better visual quality,but it cannot reflect advantages of higher-order aberrations of eyes were reduced after.