A correlative study on diopter and corneal refractive power in juvenile myopia 青少年近视眼屈光度与角膜屈光力的相关性研究
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Observation of student diopter change in students using different color paper books 不同颜色簿本对学生屈光度影响的长期观察
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The study of comparison of corneal diopter measured by corneal keratometer and corneal topographer 角膜曲率计与角膜地形图仪测量角膜屈光度的对比研究
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The excimer laser refractive surgical instrument can be used to correct myopia , hyperopia astigmatism diopter 摘要准分子激光眼科治疗机可以用来进行近视、远视、散光等屈光不正的矫正手术。
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Sphere diopter 0sjr 188 series auto refractometers adopt fashionable fogging target measurement system , which comfort the whole detection process and enhance measurement accuracy 采用国际流行的云雾验光法使您在测试过程中更舒服更准确更方便。
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By comparison and analysis of the auto lensmeter used in domestic and abroad , optics theory and foci adjustment method are discussed , the formulation of diopter of glasses is given 本文通过对国内外同种类型设备的比较和分析,给出了数字查片仪的光学原理和调焦原理,推导了镜片屈光度的计算公式。
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Through fully automatic objective measurements including infrared projecting and eye - ground imaging , and with the help of high differentiation ccd lens and 5 monitor screen , computer can calculate patients diopter objectively and accurately 全自动客觉式测量方式，红外投射，眼底成像反射,通过高分辨率的ccd镜头和5英寸显示屏，计算机客观精确地计算出患者的屈光度。
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Based on the diopter status of myopia and hypermetropia , the paper presented the principle of excimer laser refractive surgery , the change of impacting cornea curvature on the cornea diopter . in this chapter , we also discussed excimer laser - corneal tissue interactions and photoablation . determine the relationship between the fluence of arf excimer laser and the cornea ablation rate , attain the relationship between the energy density and the ablation depth 研究了激光与生物组织相互作用、光蚀作用及准分子激光消融角膜的机理；首次定量研究193nm准分子激光高斯光束的切削量与能量密度的关系，计算单个激光脉冲角膜切削量；发现了角膜曲率对切削效果的影响，首次提出了角膜曲率半径、切削位置与切削深度的关系；首次定量确定了激光光斑参数及其排列方式对术后角膜表面粗糙度的影响，为更精确实现角膜切削和提高切削后角膜表面光洁度、减少手术后角膜浑浊及角膜表面术后不规则提供了理论依据。
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The excimer laser diopter correction and aberration correction have been proved efficiency and safety . based on cad / cam , applied optics , ophthalmology , biomedicine and computer techonlogy , this paper studied the principle of excimer laser aberration correction . the conception , cause of formation and representation of wavefront aberration are introduced 准分子激光治疗屈光不正及消除像差的有效性和安全性已被证实,本学位论文将cad 、眼科视光学、波前像差技术、生物医学技术与计算机技术等多学科理论交叉结合,系统叙述了人眼波前像差理论,包括波前像差概念、表示方法、测量方法和产生的原因等。
