Tokai Optical's blue light cut glasses, Suimu, are here. Price reduced! Please consider. Exposure to blue light, which is abundant in LED lights, at night can suppress the secretion of melatonin, a sleep hormone, and promote the evening shift of the circadian rhythm. Furthermore, it has been pointed out that long-term exposure to blue light at night can not only disrupt the circadian rhythm but also adversely affect the autonomic nervous system. Circadian rhythm is a rhythm of the biological clock that repeats in a cycle of approximately 24 hours. ↩︎ Therefore, Tokai Optical is releasing "Suimu - Sleep Glasses" to effectively block blue light and control blue light at night. 【Suimu - Suimu -】Features Effectively blocks blue light ・UV cut rate: 99% ・Blue light cut rate: 95% ・Visible light transmittance: 54% Use for driving/on the road ・Daytime: Not usable ・Nighttime: Not usable ※Do not use for driving or operating automobiles or on the road, as traffic signals will be difficult to recognize. Usage scenarios ・Recommended for use indoors in a safe environment, 1-2 hours before bedtime. ※Please check the profile. ※Please refrain from purchasing if you are seeking perfection. #Suimu #Suimu #BlueLightCut #Glasses #TokaiOpticalCoLtd #TokaiOptical #BlueLight