Glasses have never been as important as they are now. In the past, people wearing glasses are normally considered with rich technology. Nowadays, glasses never fascinate people in our life any more. According to statistics, almost eight out of ten high school students are near-sighted. Doubtlessly, glasses have played a significant role in our lives. [...]
In the 13th century, many British people found they can’t see things very clearly just like years ago, and this lead that they can’t read books very well. So the famous scientist Bacon wants to find a method to solve this problem. And he had made many experiments before he finally failed. With the passage [...]
There are two kinds of glasses I have known. Sun glasses are one and myopic-sight glasses are another. When I was young, I was exhausted that why so many people wear eyeglasses. As time going by, I gradually know the reason. In the new century, people don’t pay enough attention to the protecting of their [...]