新的光致变色眼镜镜片改善眩光不适和光应力恢复

Q3 Physics and Astronomy

Results in Optics Pub Date : 2024-11-29 DOI:10.1016/j.rio.2024.100763

Jacob B. Harth , Billy R. Hammond , Cameron J. Wysocky , Lisa M. Renzi-Hammond

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引用次数: 0

摘要

目的探讨新型光致变色眼镜镜片对正常人眩光不适（GD）和光应力恢复时间（PRT）的影响。使用Transitions®Gen STM的完全激活状态和明确控制进行受试者屏蔽的受试者内比较。方法对30例受试者（M = 19.2±1.3岁）进行调查。GD通过测量睑裂大小进行物理评估，并通过5点李克特量表进行主观评估。PRT被测量为在强烈（~ 15%漂白）5秒的宽带（模拟阳光）光应激源下恢复视觉功能所需的时间量。结果生理和主观测量的gd均显著降低(p <；0.001)，当参与者通过测试镜头观看刺激时，与清晰的对照镜头相比。使用测试镜头时，PRT也显著降低(p <；0.001)。结论：这些数据与过去的发现一致，但表明它们适用于常用的光致变色颜料。研究结果强调了专用镜片在不同照明条件下提高视觉舒适度和性能的潜力。

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New photochromic spectacle lenses improve glare discomfort and photostress recovery

Purpose

To investigate the influence of a new photochromic spectacle lens on glare discomfort (GD) and photostress recovery time (PRT) in normal healthy subjects. A subject-masked within-subject comparison was performed using the fully activated state of Transitions® Gen S^TM and clear control.

Methods

30 participants (M = 19.2 ± 1.3 years) were tested. GD was assessed both physically, by measuring palpebral fissure size, and subjectively, via a 5-point Likert scale. PRT was measured as the amount of time necessary to regain visual function after an intense (∼15 % bleach) 5-second exposure to a broadband (emulated sunlight) light stressor.

Results

GD, measured both physically and subjectively was significantly reduced (p < 0.001) when participants viewed the stimulus through the test lens compared to the clear control lens. PRT was also significantly reduced when using the test lens (p < 0.001).

Conclusions

These data are consistent with past findings but show that they apply to a commonly used photochromic tint. The results highlight the potential of specialized lenses to enhance visual comfort and performance in varying lighting conditions.

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