A newly-built machine uses extremely small instruments to perform eye operations.
The machine is reported to make fewer mistakes than doctors.
Robots are already used to perform some relatively simple operations like a hysterectomy, when a doctor removes a woman's uterus. But operating on the eye is more difficult than those kinds of surgeries.
A cataract is a condition that many people develop as they get older. It makes the lens of the eye appear cloudy, making it more difficult for the patient to see. Doctors can remove cataracts through surgery.
One of the difficult parts of that surgery is getting close to the lens. The doctor has to work very carefully next to the capsule of the lens, without breaking it.
That is where Axsis technology comes in.
Axsis is one of the smallest robots for surgical use. It is the size of a soft drink can. The robot is equipped with instruments measuring only 1.8 millimeters in length.
A company called Cambridge Consultants developed the Axsis system. Chris Wagner is its head of advanced surgical systems. He says Axsis could help patients in need of corrective eye surgery.
Wagner says the company's robotics product can help with this "extremely sensitive part of the operation" of getting close to the lens without breaking it. He says with robotics, and guidance and imaging during the operation, one can see where the robot is, and see where the lens is, along with other important body parts.
All of the machine's operating parts are inside the device, he says. This is different from traditional surgical robots that operate on a long straight instrument.
Wagner says the joints have been moved inside, "so no arm is swinging around... and no arm motion has to conflict with another robot arm."
Critics say cataract surgery is not very difficult, and the new machine may not be needed. But Wagner believes it shows that such small robotic devices could be used in many other ways.
"I think the fact that it's a 1.8 millimeter diameter robot that's operating on the size scale of the eye is exciting. This just opens the door to a number of different types of procedures that you can do that previously weren't possible."
That means the device could be used for treatments that require more attention to detail than human hands can provide.
I'm Anne Ball.
The ratio of abdominal to vaginal hysterectomy is approximately 3:1.
The way is blocked by the tall cataract.
The lens of the eye accommodate to distance.
He accidentally found that the desk clock did not swing its pendulum.
1.It is the size of a soft drink can. The robot is equipped with instruments measuring only 1.8 millimeters in length.
be equipped with 配有……，装有……
Our yacht was well equipped with two double cabins fore and aft.
You can also tour the site on modern coaches equipped with videos.
2.That means the device could be used for treatments that require more attention to detail than human hands can provide.
be used for 用于……
These optical fibres may be used for new sorts of telephony.
The money saved could be used for more deserving causes.
一些相对简单的手术早已采用了机器人进行操作，比如子宫切除手术（医生切除女性的子宫） 。不过，眼部手术的难度要高于这些类型的外科手术 。
随着年龄的增长，很多人会患上白内障 。这种疾病会使人眼球的晶状体越发模糊，让病人越来越难看清 。医生可以通过外科手术来移除白内障 。
白内障手术难度较大的一个部分就是切近晶状体 。医生必须极为小心，在不伤害晶状体囊的情况下，尽可能接近晶状体囊 。
艾西斯是执行外科手术中最小的一款机器人 。它只有一瓶软性饮料那么大，但其身上所携带的仪器只有1.8毫米长 。
艾西斯系统是剑桥顾问公司研发的 。克里斯瓦格纳是艾西斯高级外科系统的负责人 。克里斯表示，艾西斯为病患做眼部矫正手术 。
克里斯还说，其公司的机器人产品能够助力这项“极为敏感手术”中迫近晶状体囊而不对其造成损坏的要求 。克里斯表示，手术期间，有了机器人技术、指导和成像，就能看到机器人所处的位置、晶状体的位置以及其他重要身体部位 。
克里斯说，艾西斯的所有操作部位都位于内部 。这与那些在又长又直的仪器上进行手术的传统手术机器人不同 。
一些批评家表示，白内障手术并不难，所以并不需要这种新型机器人 。然而克里斯却认为，有事实表明这样的微型机器人可以用很多其他的用途 。
“我觉得，一个直径只有1.8毫米的机器人做眼部手术这件事，想想就让人兴奋 。这简直为很多以前认为不可思议的事情敞开了大门 。”