Desk lights help keep the world small and visually quiet. My writing space is illuminated only by a desk lamp that throws a narrow beam; I keep the rest of the room in shadow, and avoid turning on overhead lights as long as possible. Narrow light reflects my state of mind: I want to be stay focused, keep distractions in the shadows, and be up but n

white light, color mixture, color temperature scale, shadow, highlight, refraction, direct transmission, diffuse transmission, absorption, reflection

Even if you don’t have this problem, occasionally wearing sunglasses with blue-blockers indoors can help reduce eyestrain and fatigue so you can focus and perform better. Remember, about half of us have Irlen syndrome, but we don’t know it. And the problem is getting worse, as blue light–heavy LED lighting is becoming the norm in offices,

that the light is at a 45-degree angle to the