Stored at home after a few uses. Currently sold on Amazon for 6,580 yen. Please consider purchasing if you understand that this is a used item. The ultimate blue light-cutting night glasses PC glasses have finally arrived in Japan!! Cuts 99.9% of blue light across all ranges! Blue light seriously affects your body clock. Nighttime blue light has been proven to reduce melatonin secretion and disrupt sleep cycles. ■ Recommended for people who: 1. Use smartphones or computers late at night and have trouble falling asleep. 2. Use smartphones or computers after turning off the lights before bed. 3. Tend to use their smartphones in a dark room. 4. Often watch movies in a dark room. ■ Cuts blue light across all ranges spectra479 can cut an average of 99.9% of blue light across all ranges. ・280 - 380nm: 100% cut ・Blue light (380 - 490nm): 100% cut ・Blue light (380 - 500nm): 99.9% cut ・Blue light danger zone (450nm - 510nm): 99.8% cut There are many blue light-cutting glasses that claim to cut 50% or 90% of blue light, but they often don't specify which areas of blue light they cut. It's important to know how much blue light in the 450nm - 510nm range, which is considered harmful to the eyes, is being cut. Important Notes (Please Read) ※ The orange lenses will make your vision appear orange. ※ Please refrain from using these glasses when viewing anything other than PC, smartphone, TV, etc. displays, as it may make it difficult to see and lead to eye strain. ※ Do not use while driving. This product is not intended to diagnose, treat, or prevent any disease. Lens color: Orange