Size:+2.50 (Strength) | Color:Blb08 Black (Large) Do you have Trouble to Fall Asleep and wake up tired regularly?Do you suffer from fatigue and headaches from daily screen time?In our digital age the average American spends over 7 hours a day looking at screens from smartphones, tablets, computers and TVs. Scientists have found that exposure to the emitted Artificial Blue Light Spectrum from this type of devices including fluorescent light bulbs, disturbs the Bodies Biological Clock with impaired sleep and risk of permanent eye damage.The SIMPLE SOLUTION THL Sleeps Blue Light Blocking Glasses will optimise your sleep by protecting your eyes from harmful blue light while letting in other safe light.You will notice a difference in a couple of days with greater Clarity, Comfort and Night Sleep.OPTIMIZE YOUR SLEEP, OPTIMIZE YOUR LIFE Wear the glasses 90 minutes before bedtime and you can continue to enjoy your favorite entertainment without disturbing your sleep. Wear when working on computers, smartphones or gaming to relive eye strain, eye fatigue and sensitivity to light during long sessions.This improves your focus and helps inhibit vision problems like cataracts and age-related Macular Degeneration. The BENCHMARK Clear, Transparent or Yellow lenses do not Block out enough Dangerous Light to give a sufficient non Prescriptive effect for Improvement of your Sleep Quality and Pattern. The Purpose made Dark Amber CR39 Lenses in our Glasses, have Blue Light Spectrum Elimination (BLSE) which Blocks 100% of the most Melatonin Suppressing Light Rays. FRAME SIZE AND FIT Frame size: 56-18-145. Width: 145 mm/ 5.7 inches. Fit: Unisex model. Oversized/ Large.