In fact, tears of the people are all the time to produce, however, you will not feel the tears flowing, because, your eyes have nothing special. But, if you have rhinitis or trachoma you may suffer the problem just like you have said before. If, it is not the case, so, your attention, it is a warning of your eyes. That is to say, you use eyes too much. Long-term such go down, you are not only in trouble what you have said, there are still worse things waiting for you. So, you need to pay attention to the rational use of eye. For example, in a period of time after the nets, you had better to close your eyes for a rest, if it is, you will feel comfortable a lot.
