Main Features from CAXMAN Blue Light Blocking Glasses Effectively Blue Ray Blocking - these are made to be blocking 100% of the most harmful blue light2 Different Selections for Different Purposes - Professional selection is specially made for working or learning for less color distortion but with 100% the most harmful blue light blocking; Professional-elite selection is made for gaming & sleeping for more blue light blocking. With the professional elite selection, your vision will be much soft when you use your digital devices; If you have to watch your screens for a very long time without a break or use your digital screens before bed time, then try the professional elite selectionBoth Selections are coming with Anti-Reflective Coatings - AR coatings can enhance the effect of softening the harsh light emitted from your digital devices, like computer, phone, or other digital screens100% UV Protection - UV400 standard base lens provides 100% UVA & UVB protectionDetachable Side Shields - with a pair of detachable side shields, which protect you against the side glares, splash or side wind. You can at your convenience attach or detach the side shields from the glasses Main Benefits from CAXMAN Blue Light Glasses Anti Eye Strain & Eye Fatigue Scientists found that prolonged exposure to harmful artificial blue light (high-energy visible lights) from phones, tablets, computers, TVs and LED lights results in your eyestrain. Blue light is the top factor for your eyestrain. CAXMAN can effectively reduce eyestrain and relex your eyes by blocking blue light Minimize Headace Harmful blue light and strong glares from digital screens can result your headache. With AR (Anti-Reflective) Coatings Lenses, CAXMAN blue light blocking glasses can not only block the blue light providing superior visual clarity but also soft the harsh light from digital screens, and relief headace Sleep Better Sleep is critical for high perfomance. Staring at digital screens not only hurts your eyes but also hurts your sleep cycle. Blue light stops the production of melatonin (the chemical in the brain connected to sleepiness), the medium tinted CAXMAN glasses block much more blue light, helping stimulate melatonin production. Fall alseep quicker, sleep better and wake up refreshed with CAXMAN Protective Side Shields Most high-end protective glasses are made from POLYCARBONATES. Except the ear pieces (real rubber), the main material of these glasses (including the lenses) are this material. CAXMAN glasses coming with detachable side shields can effectively help you block the splash or winds from sides like the protective glasses do. You can at your convenience detach or attach the detachable side shields. Let's keep your eyes safe from Peripheral Threats with CAXMAN Professional Selection with Light Tinted Yellow Lens for Working and Learning - Black Frame Current Selection: Glossy Black Frame with Professional Light Tinted Yellow Lens Designed for: Working or Learning, to achieve a less color distortion vision but with 100% the most harmful blue light and 100% UV protection Lens Technology (C-91 Lenses): Prescription-grade lenses and anti-reflective coatings for superior visual clarity and protection against blue light Polycarbonate Frames: Natural, BPA-free material, strong and lightweight Professional Elite Selection with Medium Tinted Yellow Lens for Gaming and Sleeping - Black Frame Current Selection: Glossy Black Frame with Professional Elite Medium Tinted Yellow Lens Designed for: Gaming or Sleeping, to achieve the most blue light blocked and 100% UV protection. Helpful for protecting your eyes for harmful light and achieving a better sleep Lens Technology (C-91 Lenses): Prescription-grade lenses and anti-reflective coatings for superior visual clarity and protection against blue light Polycarbonate Frames: Natural, BPA-free material, strong and lightweight Note: To achieve a better help for sleeping, you need to use these glasses at least 2 hours before sleep, and don't take off the glasses until you turn off all lights to go to sleep. Professional Selection with Light Tinted Yellow Lens for Working and Learning - Clear Dark Gray Frame Current Selection: Clear Dark Gray Frame with Professional Light Tinted Yellow Lens Designed for: Working or Learning, to achieve a less color distortion vision but with 100% the most harmful blue light and 100% UV protection Lens Technology (C-91 Lenses): Prescription-grade lenses and anti-reflective coatings for superior visual clarity and protection against blue light Polycarbonate Frames: Natural, BPA-free material, strong and lightweight Professional Elite Selection with Medium Tinted Yellow Lens for Gaming and Sleeping - Clear Dark Gray Frame Current Selection: Clear Dark Gray Frame with Professional Elite Medium Tinted Yellow Lens Designed for: Gaming or Sleeping, to achieve the most blue light blocked and 100% UV protection. Helpful for protecting your eyes for harmful light and achieving a better sleep Lens Technology (C-91 Lenses): Prescription-grade lenses and anti-reflective coatings for superior visual clarity and protection against blue light Polycarbonate Frames: Natural, BPA-free material, strong and lightweight Note: To achieve a better help for sleeping, you need to use these glasses at least 2 hours before sleep, and don't take off the glasses until you turn off all lights to go to sleep. Professional - Black Frame Professional Elite - Black Frame Professional - Clear Dark Gray Frame Professional Elite - Clear Dark Gray Frame