Marín-Franch I, Del Águila-Carrasco A J, Bernal-Molina P, Esteve-Taboada J J, López-Gil N, Montés-Micó R, Kruger P B
Department of Optics and Optometry and Vision Sciences, University of Valencia, Spain.
Interuniversity Laboratory for Research in Vision and Optometry, Mixed Group UVEG-UMU, Valencia-Murcia, Spain.
Biomed Opt Express. 2017 Sep 26;8(10):4717-4728. doi: 10.1364/BOE.8.004717. eCollection 2017 Oct 1.
Eyes of children and young adults change their optical power to focus nearby objects at the retina. But does accommodation function by trial and error to minimize blur and maximize contrast as is generally accepted? Three experiments in monocular and monochromatic vision were performed under two conditions while aberrations were being corrected. In the first condition, feedback was available to the eye from both optical vergence and optical blur. In the second, feedback was only available from target blur. Accommodation was less precise for the second condition, suggesting that it is more than a trial-and-error function. Optical vergence itself seems to be an important cue for accommodation.
儿童和年轻人的眼睛会改变其屈光力，以便将附近物体聚焦在视网膜上。但调节功能是否如普遍认为的那样，通过试错来最小化模糊并最大化对比度呢？在矫正像差的同时，在两种条件下进行了三项单眼和单色视觉实验。在第一种条件下，眼睛可从光学聚散和光学模糊两者获得反馈。在第二种条件下，仅可从目标模糊获得反馈。在第二种条件下，调节的精确性较低，这表明调节不仅仅是一种试错功能。光学聚散本身似乎是调节的一个重要线索。
