用于人眼散光误差主观测量的全息多发散目标。
Holographic multivergence target for subjective measurement of the astigmatic error of the human eye.
作者信息
Avudainayagam Kodikullam V, Avudainayagam Chitralekha S
机构信息
School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales 2052, Australia.
出版信息
Opt Lett. 2007 Jul 1;32(13):1926-8. doi: 10.1364/ol.32.001926.
In subjective refraction the spherical and cylindrical errors of the human eye are measured. Recently, we reported a technique by which the spherical error can be measured in one step using a hologram [K. V. Avudainayagam and C. S. Avudainayagam, Opt. Lett.28, 123 (2003)]. We have now developed a holographic target consisting of sunburst patterns to measure the astigmatic error of the human eye as well. Apart from being simple, quick, and low cost, holography offers the advantage of being an open field refraction system that is devoid of the problem of proximal accommodation. We describe the holographic target, its working principles, the measurement procedure, and the initial results obtained.
在主观验光中，要测量人眼的球镜和柱镜误差。最近，我们报道了一种使用全息图一步测量球镜误差的技术[K. V. 阿武达奈亚加姆和C. S. 阿武达奈亚加姆，《光学快报》28, 123 (2003)]。我们现在还开发了一种由旭日图案组成的全息目标，用于测量人眼的散光误差。全息术除了简单、快速和低成本外，还具有作为开放视野验光系统的优点，不存在近距离调节问题。我们描述了全息目标、其工作原理、测量程序以及获得的初步结果。
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