According to eye specialists, watching TV or movie with lights off is bad for the eyes. When the lights are off, people's eyes focus on the screen with great concentration, which may easily lead to eye fatigue. The sharp contrast between the darkness and the light from the screen will make eyes uncomfortable. If this continues for a long time, it will affect eyesight and even do damage to the eyes, and very easily lead to myopia. So when you are watching TV or movie, keep the lights on, this is better for your eyes. Eye specialists also point out that watching movie for a long time is not a healthy habit. You need to take a break after staring at the screen for an hour.