Why don’t our eyes shine in the dark?

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Why don’t our eyes shine in the dark?

You may think of those old times when our eyes turn red during photography, but this issue has nothing to do with it. We will talk about the difference in our content.

Our real question is why our eyes don’t have a glare effect at night?

In the eyes of the cat and a number of animals, there is a special structure called “Tametum Ligucum”.

The tapetum ligudum layer, which also means “glowing layer ında in Latin, is quickly behind the retina and reflecting the incoming light in the mirror and returning to the retina.

This reflection, also known as the eye flare, ensures that the beam photorecepter is perceived for the second time and thus provides a more sufficient opinion opportunity even in low light conditions.

Tatikum Lucidum actually helps cats or animals whose eyes shining to deer, hunting in dim light and seeing them more clearly.

What’s the difference of the human eye?

There is no tapetum lucidum in our eyes, and that’s why our eyes don’t shine in cats. Although the human eye provides a perfect view, this performance decreases in dim light.

In fact, this is connected to the evolutionary process again. While the eye structure develops compared to this due to the fact that people are active during the day and the night relaxation, the tapetum lucidum develops for hunting in animals that are active at night.

If our eyes come out in the photos, the glow we see is actually a bright, unexpected camera light illuminating and revealing the bloody retina.

So, how do our eyes get used to darkness?

When we first go to the darkness, we cannot see the environment clearly for a while, because our eyes, which are accustomed to light to the extent, cannot quickly harm the low conditions of light.

However, in a few minutes, our pupil expands to get more light, the rods in the retina come into play and the rhodopsin pigment is active by increasing the perception of light.

As this process progresses, our eyes become more sensitive and we begin to see the environment more clearly, but it is not a situation that happens again at this moment.

Sources: Science Direct, Discover Magazine