While we love the sleek aesthetic of Dark Mode, it turns out it is not always the eye-saving superhero we think it is. Reading light text on a pitch-black background in a well-lit room forces your pupils to dilate unnaturally, causing blurry edges and serious eye strain. If you have astigmatism, this can even trigger the halation effect, making words bleed into the background. On the flip side, Light Mode is highly comfortable if you manage it properly. The trick to saving your eyesight is dynamic adaptation. Keep Light Mode and True Tone active during the day to match ambient light, and let your device automatically switch to Dark Mode and Night Shift as the sun goes down. This smart balance keeps your eyes fresh and your screen looking sharp without forcing you to choose a permanent side in this visual civil war.