Prescription glasses Gunnar Intercept with retro classic frame fused with futuristic technology - blue light filter computer glasses reduce all short and long-term side effects of digital eye strain, including: headaches, dry eyes, blurry vision, glare, negative effects of artificial blue light, eye strain and fatigue. The result – improved clarity, focus and performance. Intercept blue light blocking prescription eyewear is perfect for use at the office or at home.