Definition
Light sensitivity, sometimes called photosensitivity, is discomfort or distress caused by bright, harsh, or flickering light. Many autistic people find fluorescent lighting, sunlight, screens, or overhead glare genuinely painful or draining. The eyes and brain register the light more intensely, so a room that seems fine to others can feel overwhelming and make it hard to concentrate or stay comfortable.
Why It Matters
Understanding light sensitivity helps you spot why certain rooms cause squinting, headaches, or a quick slide toward overload. Sunglasses, hats, warmer lighting, and seats away from glare are simple changes that can make school, stores, and home far more bearable.
Common Misconception
It is often waved off as being fussy or making excuses. The discomfort is real and can be physically painful, and flickering fluorescent lights in particular can drain energy and focus long before anyone connects it to the lighting.