In modern times, more and more people are prone to eye problems which can be fallen into various types. For example, blurriness is one of the commonest symptoms. when lost their focusing power, we will suffer from blurriness. Blind spot is another common eye problem, with which patients can not see some parts of some objects. The causes of eye problems vary a lot. For instance, fatigue, and over-exposure to sunlight are very common causes of eye problems. Some factors can also lead to blindness, as some medications. Indomethacin, phenothiazines, blood pressure pills, and ethambutol, etc. are very common medications that may cause blindness. Some of us suffer from eye problems just because we have not taken sufficient vitamins. The operations of our bodies are urgently in need of vitamins. So sometimes, the lack of some vitamins may cause eye problems, especially vitamin A. So just pay attention to this point.