You may have heard that it is bad for your eyes to watch TV in a dark room. Although there is no medical evidence that this causes damage to your eyes, researchers at the Light Research Center (LRC) have found that watching TV in a dark room causes eye strain and fatigue. This may lead to tiredness and headaches.
When the television is the only light source in a dark room, your eyes have to work hard to adjust to the fast changes in the light emitted as TV images change. The eye strain is further compounded by focusing on a single object for a prolonged period.
It is a good idea to watch the television in a reasonably lit room. The same applies to using your PC, laptop and mobile devices. So next time you want to scroll through your phone just before you sleep at night, do it with a lamp on for the comfort of your eyes.