Study on the influence of sun glare on driving safety

Guo, Yunpeng; Hu, Jinglu; Wang, Ronghua; Qu, Shangwen; Liu, Huan; Li, Zhiyong

doi:10.1016/j.buildenv.2022.109902

Cited by 4 publications

(1 citation statement)

References 25 publications

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“…The demand for photochromic CLs is higher outdoors, particularly in outdoor activities such as driving and sports, as sunlight scatter within the human eye reduces retinal image contrast [15]. Our finding indicates that photochromic CLs in the activate state may improve visual quality even under bright sunlight conditions.…”

Section: Discussionmentioning

confidence: 65%

Wavelength Characteristics and Visual Function of Photochromic Contact Lenses in Indoor and Outdoor Conditions

Suzuki,

Kamiya,

Iizuka

et al. 2023

JCM

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Purpose: To examine the wavelength characteristics of photochromic contact lenses (CL) and evaluate the impact of tinting on visual function in indoor, outdoor, and glare environments. Methods: A total of 33 healthy individuals with refractive errors were recruited and fully corrected for refractive errors. Three groups were established, including non-activated photochromic CL, activated photochromic CL, and lenses without photochromic properties, which replicated the dimming characteristics of CL. Visual acuity and contrast sensitivity were measured and compared among the three groups. Results: Statistically significant differences were observed in the spatial frequency (6, 12 cpd) and contrast sensitivity outdoors, with improved values recorded in the activated photochromic-CL group. In subsequent comparisons, the activated-photochromic-CL group demonstrated significantly better contrast-sensitivity values than the non-photochromic-CL group, as well as significant improvement in contrast sensitivity compared to the non-activated-photochromic-CL group. No significant differences were observed in the indoor or outdoor visual acuity. Conclusion: Our results suggest that photochromic CL enhances visual function in outdoor environments, while maintaining visual function indoors and under glare, thereby improving the quality of vision (QOV) in severe light conditions where exposure to sunlight and ultraviolet light is anticipated.

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Section: Discussionmentioning

confidence: 65%