Can bright light cause migraine?

A migraine is a neurological condition in which the brain becomes more sensitive to certain signals. Sun glare, flashing lights, bright indoor lighting and screens may act as triggers for some people. The attack can include throbbing or one-sided head pain, nausea, vomiting, dizziness, vertigo or facial pressure. Some people notice light sensitivity before pain begins; others develop it during an attack. Triggers vary, and bright light may be one factor among disrupted sleep, skipped meals, stress, heat or dehydration.

Rest in a quiet, comfortably dim room and limit direct glare. Drink fluids in small sips and eat a simple snack if you can tolerate it. Reduce screen brightness and avoid flashing content. If a clinician has given you a migraine plan, follow it early in the attack. Keep a diary of lighting, sleep, meals, stress, menstrual timing, symptoms and medicines; this helps distinguish a pattern from a one-off episode. Do not rely on frequent pain medicine without medical guidance.

Get emergency help for a first or sudden severe headache, weakness, numbness, speech difficulty, confusion, fainting, seizure, stiff neck, fever with a rash or persistent vision loss. Seek prompt assessment for repeated vomiting, severe dizziness, an attack that differs from your usual pattern or symptoms after a head injury. Arrange a review when attacks are frequent, worsening or difficult to control.

Does my symptom pattern fit migraine? Which early treatment is suitable for me? How should I handle light sensitivity between attacks? Could dizziness, facial pressure or vomiting point to another issue?