What's Blue Light? Blue light is the strongest light within the visible ray spectrum, and it has enough energy to penetrate straight through, passing the cornea and crystalline lens of the eye without being absorbed, and reaching the retina, which can cause it to deteriorate. Exposure to blue light for long periods of time can stimulate the ciliary muscle, causing the eye pupils to contract. This can cause a series of symptoms such as eye tired, eyestrain, dry eyes, or it can also misalign your internal body clock as it suppresses the secretion of sleep-inducing melatonin. The range is 380 to 490 nm from Purple to Blue light. Blue light's most strong power is in 380 to 410 nm. Jiizii Glass realizes that simply limiting exposure to smartphones and tablets for children and adults is easier said than done. In the real world people want real solutions. Solutions that will allow them to stay connected and enjoy their content when and how they want it. Solutions that will give them peace of mind knowing their children can continue using their favorite devices for education and fun without creating worry about endangering eye health. Specifications: Material: Tempered Glass + Soft PET Frame Thickness: 0.26mm Function: Anti-Blue Light,Explosion-proof, shock-proof, pressure-resistant and anti-scratch Surface hardness: 9H Round Edge: 2.5D and Edge-to-edge coverage Note: All our pictures are taken from real items, so the objects are the same as those in the pictures.As soon as we receive the payment, we will make the shipment. We are as good as our words, so you don't need to get worried.
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