Ocushield is a blue light screen filter, designed to protect your eyes and help you get a great night’s sleep. All digital devices emit blue light, known to cause eye strain and disrupted sleep. Ocushield fits easily on to your smartphone, tablet or computer. It cuts out blue light transmittance, letting through the non-harmful light. The picture is as clear as it should be, you wouldn’t even know it’s there. Ocushield also protects your screen from cracks and scratches. Why take risks with something as important as your vision?