Review on 🌙 Spectra479 - High-Quality 99.9% Blue Light Blocking Amber Glasses for Sleep - Medium Adult Size Nighttime Eye Wear - Unique Orange Tinted Glasses to Improve Sleep Quality & Soothe Your Eyes (Amber) by Dana Mahendra

Blue light affects the natural sleep-wake cycle = circadian rhythm. What worked for me: Start in the middle of the morning with a few minutes of natural light exposure; then 2-3 hours before bedtime - blue-blocking glasses with a high percentage of light blocking in the wavelength range of 280-500nm; 3 mg melatonin (from a trusted source) 30 minutes before bedtime; Using "F. Lux” for my computer screen; no lewd movies or bedtime talks; and minimizing the use of digital devices before bed or when waking up in the night (O'Hagan has published a table of blue light exposure from various digital devices). Using all of these factors has worked for me most nights of the week. I don't buy this product for the durability of the frame and lenses, but for the lens' ability to block visible and blue light, which inhibits the pineal gland's secretion of melatonin. I was impressed with the rounding ability of the frame, it covers a large area and I can treat all lenses with sensitivity. People who are exposed to excessive sun exposure should use sunscreen. Much of this information comes from my own experience and from reading specialist optometry journals. Two sources are Brzezinski's Melatonin in Humans N Engl J Med 1997 and O'Hagan's Energy Saving Light Bulbs, Computers, Tablets and Blue Light Hazard EYE.2016:30:230-3. The 3mg dose of melatonin works for me, but the doses that have successfully helped other people vary widely. Read the review on the ConsumerLab website or speak to your doctor. I am a retired ophthalmologist and would like to remain anonymous.