Finally a pair of blue light filtering glasses that actually fit well over my existing glasses. They are very nice. FALL ASLEEP FASTER - High energy blue light emitted by electronic devices (computers, smartphones, TV) reduces your body’s melatonin (sleep hormone) production, causing insomnia. Peekaco blue blockers filter out blue light in the “melatonin suppression zone” (280-510 nm) so your body can produce melatonin faster, helping you sleep better naturally, without the use of Melatonin pills. PROTECT YOUR EYES - Peekaco computer glasses block harmful blue light and improve eyes health by reducing fatigue. Let you reduce stress and enjoy electronics more happily. WRAP AROUND STYLE GLASSES - It’s specially designed for wearing over prescription eyewear. It's easily wear over your regular glasses, such as Myopic Glasses, Reading Glasses or wear directly. DURABLE AND COMFORTABLE - Peekaco use TR90 frame material that is extremely flexible, durable yet light at the same time. Com