日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

 
  | Home | News| Living in China| MMS | SMS | About us | Contact us|
   
 Language Tips > 2002

DEVELOPMENT REPORT-December 30, 2002: Adaptive Eyecare
By Jill Moss

This is the VOA Special English Development Report.

The World Health Organization estimates as many as one-thousand-million people around the world cannot see correctly. About ninety percent of these people are in poor countries. They need corrective glasses for their eyes, but cannot get them. This is partly because there are not enough trained eye doctors in most developing countries. In addition, corrective eyeglasses cost a lot of money.

One man is trying to change this. Joshua Silver is a physicist at Oxford University in Britain. He has created eyeglasses that permit wearers to correct their own vision. The glasses are called adaptive glasses. The lenses of the glasses are filled with a special fluid. A person can change the strength of the lenses by turning a small device attached to the
glasses.

The device changes the amount of fluid in the lenses. A person changes the shape and power of the lenses until he can see most clearly. The whole process takes less than a minute.

The glasses do not correct for astigmatism, or the abnormal shape of the eye. However, they improve the ability of people to see close up and far away. Mister Silver estimates that the glasses can help about ninety percent of the people who need to improve their vision.Mister Silver formed a company to research and develop the special glasses six years ago. It is called Adaptive Eyecare. The goal of the company is to provide low-cost corrective glasses to people in developing countries. Models of the glasses have been tested in Africa and Asia. Now, the company is preparing to sell several hundred-thousand glasses to Ghana for about ten dollars each.

The Ghanaian government is seeking aid from the World Health Organization to help pay for the glasses. Mister Silver expects the price of the glasses to drop once technology and manufacturing improve. However, he says the glasses should not be a replacement for eye care or treatment for eye diseases.

If you have a computer, you can find out more about these special glasses at the Adaptive Eyecare Internet Web page. The address is www.adaptive-eyecare. com.

Or you can write to the company at Adaptive Eyecare Limited, the Oxford Center for Innovation, Mill Street, Oxford, oh-x-two, zero-j-x, United Kingdom.

This VOA Special English Development Report was written by Jill Moss.

 

 
Go to Other Sections
Story Tools
 
Copyright by chinadaily.com.cn. All rights reserved

版權(quán)聲明:未經(jīng)中國(guó)日?qǐng)?bào)網(wǎng)站許可,任何人不得復(fù)制本欄目?jī)?nèi)容。如需轉(zhuǎn)載請(qǐng)與本網(wǎng)站聯(lián)系。
None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited.
 

 

主站蜘蛛池模板: 久久妇女 | 另类欧美亚洲 | 五月婷在线视频 | 超碰97在线看 | 欧美亚洲精品在线 | 在线免费播放av | 超碰超碰在线 | 国产第一精品 | 日本亚洲一区二区三区 | 午夜精品在线观看 | 婷婷免费视频 | 你懂的在线网站 | 日韩精品欧美激情 | 国产手机av| 丁香婷婷成人 | 九色在线观看视频 | 欧美日韩中文字幕在线 | 日韩精品一 | 天天干天天干 | 日韩欧美在线中文字幕 | 亚洲国产成人精品女人久久久 | 中文字幕免费在线观看视频 | 精品免费一区二区三区 | 成人免费一级片 | 欧美成人亚洲 | jizz一区二区 | 男人天堂综合 | 精品国产一区二区三区在线观看 | 日韩专区一区 | 国产成人精品在线 | 黄色片入口 | 久久人人超碰 | 精品一区二区在线播放 | 午夜国产视频 | 69亚洲精品 | 男人综合网 | 亚洲 欧美 日韩在线 | 男人的天堂欧美 | 天堂av资源在线 | 黄色一级a毛片 | 日韩av免费播放 |