Well, we start with a substrate that has a light-sensitive film on it.

我们从个有层感光膜覆盖基底开始。

This area is covered with light sensitive cells known as cones.

这个区域被称为视锥细胞感光细胞所覆盖。

Doctors believe they need to fix one-tenth to one-third of the cells to repair vision.

医生认为，修复视力需要修复十分之至三分之感光细胞。

It damages those fine photoreceptors, which are used for sensing vision.

它损害了那些用于感知视觉细感光器。

Photons with wavelengths between 400-700 nanometers have the perfect level of energy to excite the rods and cones in your eyes, which then transmit signals to your brain that you interpret as different colours.

光子波长介于四百到七百奈米最能激起眼球中感光细胞，之后将信息传送于大脑，不同颜色。

Compound eyes are made up of hundreds or even thousands of tiny light-sensitive units.

复眼是由成百上千个微可感光眼组成，每个细胞只能看到周围环境部分。

The nanoparticles attach themselves to photoreceptors in the animal's retina.

纳米颗粒附着在动物视网膜上感光细胞上。

In one 2012 study, the researchers used a technique called optogenetics, where, by shining a special light on a part of the brain primed with light-sensitive proteins, you can turn specific neurons on.

在 2012 年项研究中，研究人员使用种叫做光遗传学技术，通过将种特殊光照在大脑中被感光蛋白激活部分，能激活特定神经元。

Photons with wavelengths between 400-700 nanometers have the perfect level of energy to excite the rods and cones in your eyes, which then transmit signals to your brain that you interpret as different colors.

光子波长介于四百到七百奈米之间，是最能激起眼球中感光细胞，之后将信息传送于大脑，不同颜色。

Light sensitive cells in our retinas feed signals deep into that brain region, training neurons to sync up with Earth's 24 hour cycle of day and night.

我们视网膜中感光细胞？将信号输入大脑深处，训练神经元与地球昼夜24时循环同步。

They most likely developed from a tiny light-sensitive patch on single-celled organisms that would help them move towards light in the hope of finding food.

它们很可能是从单细胞生物体上个微感光斑块发展而来，这个斑块可以帮助它们向光移动，希望能找到食物。

What's also fascinating is it's also thought that this may have been able to detect light, it may have had primitive cells that were sensitive to light, and allowed it in a very loose sense to see.

更神奇是，人们还认为皮卡虫也许能感觉到光线，它身上可能有些原始感光细胞使它拥有了比较低级视力。

The light-sensitive surface in a camera only has one kind of photoreceptor that is evenly distributed throughout the focusing surface.

相机中感光表面只有种光感受器，平均分布在整个对焦表面。

But anyway, it turns out they're actually just a window that focuses photons onto a light-sensing tissue called the retina.

但不管怎样，事实证明它们就像个有感光装置窗户，那个装置就叫做视网膜。

The Illum still uses a special sensor covered by a matrix of microlenses, which capture the entire light field.

新款Illum仍然使用微透镜阵列为矩阵式排列特殊感光元件，从而可以捕捉全区光场摄影领域。

The OCT systems operated by ophthalmologists use low-power lasers which produce light with a wavelength of 850 nanometres.

眼科医生操作OCT系统使用是低功率激光器，能够发850纳米波长光线，这刚好超了眼睛视杆视锥层可感光范围。

Sensors in the back of the eyes respond to changing light, transmitting crucial information to the brain.

位于眼睛后方感光器官会对光线变化做反应，并把重要讯息传递给大脑。

A more complex version of this light spot can be found in the flat worm, planaria.

扁形动物中涡虫 则拥有更复杂感光点结构。

And some birds of prey have like 10 times more than we do.

有些猛禽感光细胞数量是我们 10 倍。

Basically, the more light that a single cell or single photo receptor can take in, it reduces the resolutions.

基本上，单个细胞或单个感光体吸收光越多，分辨率就越低。