Describe the causes and consequences of corneal injuries and ulcers,and explain how these problems are treated.
这个都不知道背景知识，写起来好复杂...
In general, the number of corneal injuries and olcers takes a great part of the number of people who suffer the accidents in every year. In our daily lives, the eyes are the most paramount organs for us to get data from the environment. When we are reading books, watching TV, or even chatting with others, the eyes seem to help us obtain some information which can not be gained by the ears or the hands. As we know, the cornea is one membrane in front of the eye, just like the windows in the house. So it is more likely to be injured or be sick.
The cornea is so vnerable that almost all the hard things which are blowed in to the eye would do some harm to the membrane. Just like the windows, some sands or flying metal cutting remains would make the glasses less clear or even broken. When a small size of sand is blowed into the eye, people usually can not take it out instantly. Instead, people would choose to move their eyes and try to take it over by hand. It may cause the sand scraps over the cornea which would lead the injuries of cornea. And the high speed hard objects, such as the flying metal remains would actually pale into the membrane. The reasons mentioned above is just the objective reason. There are some physical reasons, such as fungi, virus and other heritary reasons.
When the cornea is injured, the eyesight of patients would be so weak that maybe it is impossible to live normally. The brim eyesight will increase the mistakes we take and sometimes miss chances. In common, we can no longer acquire the comprehensible information using the most efficient ways. Even if we can see the objects in front of us, we perhaps can not trust ourselves in mental. There is a saying in Chinese, the eyes are the windows of heart. Let us think about it. If the membrane of the windows is injured or broken, how will you feel in the house. Perhaps you just can see little light and no longer find anythings, as well as the feeling of losing healthy cornea.
One of my relatives once got the cornea injuries. At that time, his life was attend all by his wife. To cure this
kind of ill, the most efficient way is to implant one new cornea to the patient and replace the injured one. However, the method is too expensive for some poor people and it is not easy to find one cornea which can match successfully to the patient's eyes. So in common, doctor always heal the cornea using some special drugs which can stimulate the renovation of cornea. If the situation is worse, perhaps doctor would do the surjery to clean the cornea or mend it. In fact, the two methods are used almost stimulatenously.作者: ly8768 时间: 2009-8-16 16:38:11
1#goback211
In general, the number of corneal injuries and olcers(ulcers) takes a great part of the number of people who suffer the accidents in every year. In our daily lives, the eyes are the most paramount organs for us to get data from the environment. When we are reading books, watching TV, or even chatting with others, the eyes seem to help us obtain some information which can not(cannot) be gained by the ears or the hands. As we know, the cornea is one membrane in front of the eye, just like the windows in the house. So it is more likely to be injured or be sick.
The cornea is so venerable that almost all the hard things which are blowed(blown) in to the eye would do some harm to the membrane. Just like the windows, some sands or flying metal cutting remains would make the glasses less clear or even broken. When a small size of sand is blowed(blown) into the eye, people usually can not take it out instantly. Instead, people would choose to move their eyes and try to take it over by hand. It may cause the sand scraps over the cornea which would lead the injuries of cornea. And the high speed hard objects, such as the flying metal remains would actually pale into the membrane. The reasons mentioned above is just the objective reason. There are some physical reasons, such as fungi, virus and other heritary reasons.
写的很详细啊
When the cornea is injured, the eyesight of patients would be so weak that maybe it is impossible to live normally. The brim eyesight will increase the mistakes we take and sometimes miss chances. In common, we can no longer acquire the comprehensible information using the most efficient ways. Even if we can see the objects in front of us, we perhaps can not trust ourselves in mental. There is a saying in Chinese, the eyes are the windows of heart. Let us think about it. If the membrane of the windows is injured or broken, how will you feel in the house. Perhaps you just can see little light and no longer find anythings(anything), as well as the feeling of losing healthy cornea.
这个最好写听力或者阅读材料里面有的
One of my relatives once got the cornea injuries. At that time, his life was attend all by his wife(这句似乎应该归为上一段的). To cure this kind of ill, the most efficient way is to implant one new cornea to the patient and replace the injured one. However, the method is too expensive for some poor people and it is not easy to find one cornea which can match successfully to the patient's eyes. So in common, doctor always heal the cornea using some special drugs which can stimulate the renovation of cornea. If the situation is worse, perhaps doctor would do the surjery(surgery) to clean the cornea or mend it. In fact, the two methods are used almost simultaneously.