离焦的时间波动可以逆转因诱发屈光不正而造成的视力损失

Journal of the Optical Society of America Pub Date : 2023-10-16 DOI:10.1364/josaa.497091

Sabyasachi Goswami, Shrikant Bharadwaj

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引用次数: 0

摘要

最近的一个模板匹配模型假设，通过将时间离焦波动增加到屈光不正的大小，可以恢复具有未矫正屈光不正的模拟视力损失。视力恢复达到饱和或衰减超过这个量级。这些预测在10名患有0.5-2.0D诱发性近视的年轻成人单眼高对比视力中得到了证实，并在4.0 Hz频率下伴有相同范围的时间离焦波动。研究结果表明，空间分辨率可以通过在整个刺激呈现时期或在该时期内离焦最小的点周围平均时间变化的离焦来优化。

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Temporal fluctuations in defocus may reverse the acuity loss encountered with induced refractive errors

A recent template-matching model hypothesized that simulated visual acuity loss with uncorrected refractive errors may be recovered by adding temporal defocus fluctuations up to the magnitude of the refractive error. Acuity recovery saturates or gets attenuated beyond this magnitude. These predictions were confirmed for monocular high-contrast visual acuity of 10 young, cyclopleged adults with 0.5–2.0D of induced myopia combined with the same range of temporal defocus fluctuations at 4.0 Hz frequency. The outcomes reinforce that spatial resolution may be optimized by averaging time-varying defocus over the entire stimulus presentation epoch or around the point of least defocus within this epoch.

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来源期刊

Journal of the Optical Society of America

自引率

0.00%

发文量

期刊介绍： OSA was published by The Optical Society from January 1917 to December 1983 before dividing into JOSA A: Optics and Image Science and JOSA B: Optical Physics in 1984.