Romashchenko Dmitry, Lundström Linda
Department of Applied Physics, Royal Institute of Technology, Stockholm, 11421, Sweden.
Biomed Opt Express. 2020 May 18;11(6):3125-3138. doi: 10.1364/BOE.391548. eCollection 2020 Jun 1.
We have developed a novel dual-angle open field wavefront sensor. This device captures real-time foveal and peripheral Zernike aberrations, while providing natural binocular viewing conditions for the subjects. The simultaneous data recording enables accurate analysis of changes in ocular optics with accommodation overcoming any uncertainties caused by accommodative lag or lead. The instrument will be used in myopia research to study central and peripheral ocular optics during near work and to investigate the effects of optical myopia control interventions. Proof of concept measurements, performed on an artificial eye model and on 3 volunteers, showed good repeatability with foveal-peripheral data synchronization of 65 msec or better. The deviations from subjective cycloplegic refractions were not more than 0.31 D. Furthermore, we tested the dual-angle wavefront sensor in two novel measurement schemes: (1) focusing on a close target, and (2) accommodation step change.
我们开发了一种新型双角度开放视野波前传感器。该设备可捕捉实时中央凹和周边的泽尼克像差，同时为受试者提供自然的双眼观察条件。同步数据记录能够在克服因调节滞后或超前引起的任何不确定性的情况下，准确分析随着调节而产生的眼屈光变化。该仪器将用于近视研究，以研究近工作状态下的中央和周边眼屈光，并研究光学近视控制干预措施的效果。在人工眼模型和3名志愿者身上进行的概念验证测量显示出良好的重复性，中央凹与周边数据同步时间为65毫秒或更短。与主观睫状肌麻痹验光的偏差不超过0.31D。此外，我们在两种新型测量方案中测试了双角度波前传感器：（1）聚焦于近目标，以及（2）调节阶跃变化。
