Survival On An Isolated Island: My Island Can Swallow

090. A little science about eyes

"If there is anything I want to sell in the future, if I think of it, I will say hello to you in advance. As for the matter of the honorary commander, let's forget it. I like to be alone for the time being. However, I hope You can get stronger, keep working hard."

After saying some polite words, Qin Quge politely rejected No. 2's proposal.

Although, Qin Quge admires the ideas of people like No. 2,

But admiration is admiration,

No. 2's strength is indeed not enough to make Qin Quge take it seriously.

When you can help, you can help.

But if he wanted to tie Qin Quge to their boat, that was out of Qin Quge's consideration.

After closing the communication section, Qin Quge took a short rest and continued to deal with the rest of the octopus sea monster.

Even if it is traded to the community with a shared future for mankind, there are still many remaining parts.

Xiaobai is diligent and conscientious, according to what Qin Quge explained before, he processed a lot of meat,

The intact sea monster eye was also dug out,

It may be a separate part, and it is complete. This piece is directly recognized by the system, and its properties are much better than that of the damaged eye.

[Small sea monster's eyeball: purple quality, consumption can increase mental power +2, there is a 5% chance to promote the evolution of the user's eyes, there is a 1% chance to obtain perfect vision, there is a 0.1% chance to acquire skills related to eyes . Only the first time it is consumed is effective, multiple consumptions will not trigger the second chance. 】

The crystal film part of this thing is transparent and clear, similar to jelly, but the lower part is dark, which is really not a delicacy that people want to eat.

But in order to acquire skills related to eyes, Qin Quge had to try.

Qin Quge didn't say he couldn't take it anymore after eating the top-quality sea monster meat.

As a foodie, there is never a problem that I can't eat,

Mostly - I'll take a break before eating.

Mainly it's about the eyes.

Qin Quge still hopes that he can acquire a visual skill.

After all, the known human eyes have some "design" defects.

The following parts contain more popular science and can be skipped.

If the human eye is regarded as a camera, then the retina is like the photosensitive film in the camera, which is responsible for photosensitive imaging.

When we look at something, the image of the object falls on the retina through the refractive system, and then transmits the image information we see to the brain through the nervous system.

Therefore, the retina is the basis of our vision.

Our retina is roughly composed of three layers of cells, namely photoreceptor cells, bipolar cells and ganglion cells.

Photoreceptor cells convert light signals into electrical signals,

Bipolar cells sort and process these electrical signals.

Finally, ganglion cells transmit these sorted electrical signals to the brain to form the final image.

Knowing the function of the cells in the three layers of the retina, we should be able to infer their location in the eyeball.

Theoretically, the photoreceptor cells should be on the most recumbent side, 1 to receive the incoming light signal from the outside world.

The ganglion cells are responsible for the final step of transmitting electrical signals to the brain, and should be located in the innermost part of the eye.

But the actual situation of our human eyes is just the opposite, the meaning of photoreceptor cells and ganglion cells is completely reversed.

Just imagine the "design" with ganglion cells outside and photoreceptor cells inside.

When light enters the pupil, it first passes through ganglion cells and binuclear cells before reaching the photoreceptor cells.

Then these cells that "block" in front of the photoreceptor structure will reflect or refract light, which will reduce the quality of photoreceptor cell imaging.

This is like putting a translucent film on the front of the film of the camera.

Not only that, because the ganglion cells are located in the direction in which light enters. Therefore, the nerve fibers it sends out must gather into a bundle, pass through the eyeball and then circle to the brain.

But here, the photoreceptor cells have no place to stay, they have to form a node.

So this leads to an area of ​​our retina that is not sensitive to light, thus forming a blind spot.

And, even the retina itself is installed backwards.

This also results in the loose contact between the retina and the eyeball wall only by the top of the photoreceptor cells and the pigment cell layer, so it is easy to fall off.

A blow to the head, or degeneration of the eyeball with age can cause retinal detachment.

What's more exaggerated is that high myopia may appear if you roll your eyes a few more times.

To sum up, human eyes, no, it should be that almost all vertebrate eyes adopt the flip-chip method, and there are also some defects.

These defects themselves will not cause much trouble in the real world. As long as we pay attention not to overuse our eyes and protect our eyes well, they will not cause retinal detachment, fundus hemorrhage and other problems. The impact on us is almost non-existent.

But in the world of survival, in this world where there are various extraordinary powers, as one becomes stronger and more powerful, such details will be magnified. Any number of defects can cause great danger.

And having the opportunity to get a certain aspect of optimization "of course it's good.

For example, if human eyes can be made like octopuses, it will bring many advantages to itself.

You know, the eyes of the octopus are said to come from the "`~God's hand'".

Their retinas are properly installed, and their neural structures are also directly connected to the brain, without penetrating the retina, and then looping back to the brain,

This kind of eye structure not only makes the octopus have no visual blind spots, but also the retina will not fall off easily, and it also has faster visual feedback.

Even in the low-light environment of the seabed at a depth of 1000 meters, octopuses are still good) have strong eyesight.

Or, like a falcon, get a better macula and lens to optimize and make up for defects.

...minister...

Qin Quge doesn't care about the evolution of his eyes, or the perfection of his eyes,

Humans have millions of years of evolutionary history, even if some organs are not the best, they are already the most suitable.

Therefore, what he wants more is to acquire a vision skill.

After letting his stomach rest for half an hour, Qin Quge moved his mouth to suck the liquid from the sea monster's eyes.

With a very strong salty taste,

not very good taste,

Maybe cook it.

As a purple-quality ingredient, the eyes are still a lot worse than the top-quality sea monster meat.

[System prompt: Congratulations, by eating the eyeballs of small sea monsters, you have acquired a special skill——{Eye of Life}. 】.