1.5 Is it necessary to buy eye protection lamps?

Is it necessary to buy eye protection lamps? In fact, personally, if this is really useful, it is necessary. Although it is useless, yes, it is a comfort in my heart. In fact, first, this kind of performance is generally more aimed at the eyes under true white light. What do you usually study? It's better to turn on this lamp at night than to really look at that desk lamp. For other soldiers, it should have a better effect. Also said that others don't have eye protection lights. This person is actually a person who wants you to laugh. This will actually be a psychological effect, or it really has no effect. It's no different from anything else, is it? You can't call him a show, but he is really different. If you don't want to buy it, it's not necessary, really.