• Blocks 100% of blue, green and violet light below 550 nm to protect melatonin production. • Helps synchronize the sleep-wake cycle and improves rest quality. • Lightweight TR90 frame designed to reduce eye fatigue and glare. • Lens technology with double AR coating that reduces reflections and offers clear visibility. • Light transmittance superior to 22,5% for a better visual experience. • Suitable for use with screens, video games, television and mobile phones. • Recommended to use 1 to 2 hours before sleeping to facilitate sleep onset.