官方APP下载:英语学习播客(支持苹果手机、安卓手机)
创办于2003年
UNSV记不住?那就记中文谐音“忧安思危”吧!
  Slow and Steady Wins the Race!
UNSV英语学习频道 - Slow and steady wins the race!
公众微信服务号
英语全能特训(微信公众服务号)
UNSV英语学习频道淘宝网店
客服短信:18913948480
客服邮箱:web@unsv.com
初级VIP会员
全站英语学习资料下载。
¥98元/12个月

Blind Man Given a Chance to See

作者:Anne Ball 发布日期:10-15-2019

A new device is helping those who are blind to see. It does this in a new way by helping them experience the world around them.

Jason Esterhuizen lost his eyesight after a car accident. He never thought he would be able to see light or movement again. But now with the movement of a switch, his world suddenly grew brighter.

He says,

'I still can't put it into words. I mean from being able to see absolutely nothing, it's pitch black, to all of a sudden seeing little flickers of light move around."

It is not full or normal sight, but Esterhuizen can move about in the world around him.

Dr. Nader Pouratian is one of the researchers at the University of California at Los Angeles Medical Center who worked on the new technology.

"Being able to tell where a doorway is, being able to tell where the sidewalk begins or ends or where the crosswalk is, are all extremely meaningful events that can help these people regain some form of independence.

The new technology uses several parts. One is a small device placed in the brain. The other parts are a video camera on sunglasses and a processing device that can be carried in a person's clothes. When the user points the camera, a signal goes to the processor and then back to the glasses. The glasses then communicate wirelessly with the device in the brain. The information causes a pattern to develop in the part of the brain called the visual cortex. The pattern helps users detect, or see, movement and shapes of light. And it all happens in seconds.

Pouratian says this technology is a first.

"We basically have the video camera and the video processing unit functioning or performing the functions of what the eye normally does."

Esterhuizen is one of just two people in the U.S. testing this technology. He describes what he sees.

"There's little white dots on a black background. It's like looking up at the stars at night."

The technology — called Orion — is manufactured by a company called Second Sight. It's being tested at the UCLA Medical Center in California and the Baylor College of Medicine in Texas.

Esterhuizen says the results are amazing.

"Someone moving across the room, walking past me or walking away from me, or it's a light against the wall. It was just amazing to have some form of functional vision again."

He adds that now he can do everyday activities around his home that he once could not. It is easier to walk outside.

'Crossing the road is much easier and much safer for me because I can look down and just follow the white line that's painted on the road."

The researchers believe that one day this technology could help people who have lost their vision because of illnesses like glaucoma or diabetes. It may also help those with poor vision or who were born blind.

I'm Anne Ball.

Carol Pearson wrote this story for VOA News. Anne Ball adapted it for VOA Learning English.

What do you think of this story? We want to hear from you. Write to us in the Comments Section.

Blind Man Given a Chance to See

Start the Quiz to find out

Start Quiz

Words in This Story

switch - n. a small device that starts or stops the flow of electricity to something (such as a lamp or a machine) when it is pressed or moved up and down

pitch black – adj. completely dark

flickers – n. (plural) a quick and unsteady movement of light

sidewalk – n. a usually concrete path along the side of a street for people to walk on

crosswalk – n. a marked path where people can safely walk across a street or road

pattern – n. a repeated form or design especially that is used to decorate something

版权所有©2003-2019 南京通享科技有限公司,保留所有权利。未经书面许可,严禁转载本站内容,违者追究法律责任。 互联网经营ICP证:苏B2-20120186
网站备案:苏公网安备 32010202011039号苏ICP备05000269号-1中国工业和信息化部网站备案查询
广播台