Author: ptbptb

关于 eye hospital 的讨论,回应诸位感兴趣的教授 [Copy link] 中文

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Post time 2006-9-1 17:07:16 |Display all floors
上面举的两段,“也许”与“无疑”互换一下,可能比较符合逻辑。

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Post time 2006-9-1 17:14:44 |Display all floors
“在作为一个学术研究范畴的时候,ophthalmology无疑是唯一选择。” 这话含糊不清,“ophthalmology”为什么“无疑是唯一选择”?难道不用ophthalmology就不能搞学术研究了吗?

ophthalmology
n.
The branch of medicine that deals with the anatomy, functions, pathology, and treatment of the eye.

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Post time 2006-9-1 17:16:56 |Display all floors
分析的无疑是到了点子上,但也许有人不喜欢。

Originally posted by ptbptb at 2006-9-1 17:07
上面举的两段,“也许”与“无疑”互换一下,可能比较符合逻辑。

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Post time 2006-9-1 17:19:21 |Display all floors

请看除了王银泉教授的“唯一选择”以外还有没有别的选择:

http://www.ucl.ac.uk/ioo/eyescience.htm

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Eye Science

The Visual Process
Our perception of the visual world follows from a sequence of events leading from the eye to the brain. Understanding the normal function of the eye enables us to identify where, and how, the eye fails in disease states.

In the eye the transparent cornea and the lens focus the image of the world outside on light-sensitive elements (the photoreceptors - rods for night vision and cones for daylight vision) at the back of the eye. These connect to other nerve cells at the back of the eye in a delicate and thin structure called the retina. The retina is really a special neural circuit that senses and pre-processes the visual image before sending the information of the image to the brain. The information is sent to the brain in a large bundle of nerve fibres leaving the back of the eye. They leave at the optic disk and form the optic nerve.

The fibres in the optic nerve pass to the brain where they connect in a special structure called the lateral geniculate nucleus which in turn sends connections to the visual cortex. Once in the cortex the visual information is processed in parallel through many cortical areas each specialising in particular aspects of the visual world. Through many complex connections between the different visual cortical areas our perception of the visual world is integrated into the image we see in our mind's eye.

A special aspect to emphasise about the visual process is that many things happen in parallel and that separate channels of output from the retina carry different types of information about the visual world. These may be differentially affected by disease processes. One channel (the magnocellular pathway) carries information especially important to the processing of visual motion and another (the parvocellular pathway) carries information that underpins colour vision and the fine resolution of form.

Thanks to our understanding of this we can use subtle tests of visual perception in patients to provide an invaluable insight into the presence and development of sight threatening diseases. The visual system has a remarkable capacity to compensate for the effects of retinal disease and for this reason people are often not aware that they have sight threatening eye diseases until it is too late to effect treatment.

Within the Institute of Ophthalmology we have world-leading research teams working on aspects of the visual process extending from the photoreceptors through to the cortical mechanisms of vision. These include developmental biologists, visual neuroscientists and visual psychophysicists. Each aspect of this is very important to our mission.

The brain mechanisms underlying the almost magical process of visual perception are one of the most fascinating challenges of modern science. In recent times remarkable progress has been made towards establishing the elements of an understanding of the way the visual world is recreated in our brain. There is an astonishing complexity and number of specialised, highly interconnected cortical regions. Each plays a unique role in processing a particular aspect of the input from the eyes. Experts at the Institute of Ophthalmology have made large contributions to the understanding of the anatomy and function of these visual centres and the way they link to visual perception.

This work enables us to understand the ways in which particular disease processes interfere with retinal function and how this in turn influences the patient's perception of the visual world. A combination of our understanding of the visual system with that in molecular genetics, cell biology and immunology opens the door to new ways of repairing retinal function with transplantation techniques and gene therapy. It also provides a guiding light for our work on visual rehabilitation by suggesting ways in which we can help people make maximum use of the remaining intact areas of diseased retinae.

This page last modified 4 April, 2006 by David Daniel   

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Post time 2006-9-1 17:19:57 |Display all floors
Ophthalmology 不是唯一的选择,有些情况下要用 Ophthalmic,有些情况下用 Ophthalmology。

Originally posted by ptbptb at 2006-9-1 17:14
“在作为一个学术研究范畴的时候,ophthalmology无疑是唯一选择。” 这话含糊不清,“ophthalmology”为什么“无疑是唯一选择”?难道不用ophthalmology就不能搞学术研究了吗?

ophthalmology
n.
The branch ...

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Post time 2006-9-2 18:51:07 |Display all floors
Originally posted by laoxianggg at 2006-9-1 17:16
分析的无疑是到了点子上,但也许有人不喜欢。



看样子还没有投诉......

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Post time 2006-9-2 20:33:31 |Display all floors
欲盖弥彰耶,王教授,坦白些会给你增加些粉丝!
赞一个,平老师!路见不平,该出手时就出手!
或者升的更高,或者彻底堕落;
或者成就自己,或者毁掉自己。

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