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的基底开始。

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

这个区域被称为视锥细胞的感光细胞所覆盖。

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三分的感光细胞。

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

它损害了那些用于感知视觉的细感光器。

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

有些猛禽的感光细胞数量是我们的 10 倍。

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

复是由成百上千个微小的可感光的小组成的，每个细胞只能看到周围环境的小部分。

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

纳米颗粒附着在动物视网膜上的感光细胞上。

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

扁形动物中的涡虫 则拥有更复杂的感光点结。

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

位于睛后方的感光器官会对光线的变化做出反应，并把重要讯息传递给大脑。

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

科医生操作的OCT系统使用的是低功率激光器，能够发出850纳米波长的光线，这刚好超出了睛视杆视锥层可感光的范围。

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的光越多，分辨率就越低。

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的特殊感光元件，从而可以捕捉全区的光场摄影领域。

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的窗户，那个装置就叫做视网膜。

Birds have an extra photoreceptor that allows them to see red incredibly well.

鸟类有个额外的感光器，使它们能够非常清楚地看到红色。

Partly, because we have similar densities of photoreceptors in our eyes.

部分是因为我们中的感光器密度相似。

The light sensitive layer inside your eye is filled with tiny cells called photoreceptors.

睛内的感光层充满了称为光感受器的微小细胞。

At the back of the camera is a massive grid of microscopic light sensitive squares.

相机背面是个巨大的微小感光方块网格。

The light-sensitive part of the eye and part of the camera are both encased in black.

睛的感光部分和相机部分都被黑色包围。

Cats' eyes get their shine from a structure called the tapetum lucidum that sits behind the photoreceptors.

猫的睛从位于感光器后面的称为绒毡层的结中获得光泽。

This means the information that photoreceptors collect will vary over time, as will the quality of the image.

这意味着感光器收集的信息会随着时间的推移而变化，图像的质量也会随变化。