Atchison David A, Varnas Saulius R
School of Optometry & Vision Sciences and Institute of Health & Biomedical Innovation, Faculty of Health, Queensland University of Technology, Kelvin Grove, Australia.
Carl Zeiss Vision Australia Holdings Limited, Zeiss Group, Lonsdale, Australia.
Ophthalmic Physiol Opt. 2017 Jan;37(1):96-104. doi: 10.1111/opo.12340.
To develop equations for accommodation stimulus and accommodation response with autorefractors when the accommodation stimulus is produced by combinations of object distances and lenses placed in front of eyes, and to give worked examples using these equations.
Simple ray tracing was used to determine stimulus and response equations, taking into account the reference positions for targets, for refraction, and for autorefractor readings.
Several examples applying equations are provided. Features of these examples include evaluating approximate calculations that have been used previously, demonstrating which equations should be used in different circumstances, how to substitute numbers into equations, how to deal with discrepancies between subjective and objective refraction, and how to deal with astigmatism. Problems associated with measuring accommodation response by placing lenses in front of the eye are discussed.
Accurate equations for accommodation stimulus and accommodation response for a range of accommodation stimuli in different setups have been developed.
当调节刺激由置于眼前的物距和透镜组合产生时，推导使用自动验光仪测量调节刺激和调节反应的公式，并给出使用这些公式的实例。
利用简单的光线追迹法确定刺激和反应公式，同时考虑目标、屈光和自动验光仪读数的参考位置。
提供了几个应用公式的实例。这些实例的特点包括评估先前使用的近似计算方法，说明在不同情况下应使用哪些公式，如何将数值代入公式，如何处理主观验光和客观验光之间的差异，以及如何处理散光。讨论了通过在眼前放置透镜测量调节反应时相关的问题。
针对不同设置下一系列调节刺激，已推导出精确的调节刺激和调节反应公式。
