For digital displays, position the light source behind the screen to reduce glare. Ensure light intensity is around 300-500 lumens. For reading paper, use a bright lamp to illuminate pages without shadows, with brightness of 450-700 lumens. The Lighting Research Center recommends these practices to minimize eye strain and improve readability. Consider the difference between reading an e-book and a paperback. Ensuring the correct lighting setup for each can significantly improve comfort and reduce eye strain.