Datang started from being a salted fish

Chapter 499 Vision Tester

Sure enough, the wisdom of the ancient people should not be underestimated!

Come to think of it, if this were not the case, the Great Wall would not be listed as one of the top ten man-made wonders in the world.

But now that they have seen this stubble, let them study it slowly.

"Actually, it's easy to say that presbyopia usually only appears when you reach a certain age." Wang Yin simply continued to popularize science for Li Shimin: "If you don't pay attention to the use of your eyes, it can also cause myopia or astigmatism, which can also cause myopia or astigmatism. It will seriously affect vision."

Speaking of myopia, Wang Yin couldn't help but think of the myopic representative of the Li family who came before. At first, he thought he was a weird squinter. . .

"So that's what happened..." Li Shimin nodded when he heard what Wang Yin said.

In fact, he only understood the general idea. After all, Wang Yin made a common-sense mistake here: Before crossing, it was true that many people had caused a large number of myopia and astigmatism due to improper use of eyes, and many children were more than ten years old. When I was young, I wore lenses with hundreds of degrees.

But these are caused by advanced technology before time travel.

But what about this ancient time?

Ordinary people can't even afford to light candles at night, let alone such troublesome things as lighting computers!
It was already dark and went to bed after eating, so naturally there is basically no problem of excessive use of eyes!
If you want to say that myopia or something like this is true in the Tang Dynasty, but it usually happens to those with better family backgrounds. Ordinary people are basically insulators of myopia.

Since there was no large-scale phenomenon, Li Shimin was not very clear about it.

Besides, what I have been thinking about all day long is the problem of the common people's food and clothing, so I don't have the heart to study whether they can see clearly. . .

"It's okay if you don't understand." Wang Yin saw Li Shimin's appearance and knew that he was pretending to understand: "Just know that there is such a thing."

Ministry of Industry
"See Your Majesty!"

"I've seen a fairy!"

When Duan Lun saw these two big men coming over, he immediately led them to salute respectfully.

"You don't need to be too polite." Li Shimin waved his hand as a signal, and then pointed to the helmet in Wang Yin's hand: "Who made this thing?"

"Return to Your Majesty, it's me..." The man who made the million-dollar hat bravely stood up when he saw this.

Originally, after Duan Lun helped him report this matter, he was still happily waiting for the reward, but now that the reward has not come down, why did His Majesty and the immortal come directly?
After all, in his opinion, even if there is any reward, it is a matter of His Majesty's order, so he shouldn't come here in person, right?

And he brought the fairy here!

Is there something wrong with this thing I made?
Thinking of this, he couldn't help but become nervous: But don't get the reward and cause trouble instead!It would be a big loss if that were the case!Grandma, you said I have nothing to do and why am I messing around with my hands? ! !

"Good job!" Wang Yin walked over and patted him on the shoulder: "Datang needs talents like you!"

"Eh?" The man was obviously stunned when he heard what Wang Yin said.

Does it mean I'm okay?

It’s not that I didn’t do the co-authoring well, but that it was too good, right?

Good guy, don’t be so scary!
"Hey..." Being praised by the immortal Wang Yin, the man scratched the back of his head and laughed smirkly.

"What's your name?" Wang Yin asked curiously.

"Returning to the Immortal, my name is Lu Qimo." The man clasped his hands and replied.

"Oh, go ahead!" Wang Yin saw this and experienced it, then patted him on the shoulder again with a strange look on his face: "What a good name..."

Good guy, Lucimo, Lutimo, your parents are so talented. . .

It's just that Teemo is a little too big. . .

"You guys are quite capable of tossing?!" Wang Yin took a look at the giant magnifying glasses placed by the Ministry of Engineering and immediately became happy. He ran over to play with them out of curiosity: "You can actually create so many big guys."

"This is fun, this is fun." Wang Yin held a giant magnifying glass in front of his eyes, and stared at the people around him curiously.

To be honest, it was the first time I saw such a big magnifying glass when I grew up so big. . .

Especially after seeing Li Shimin's exaggerated face, Wang Yin almost couldn't help laughing. . .

Can't laugh can't laugh!

Anyway, there are so many people, I have to show Lao Li some face!
But it was too funny. . .

"You guys are here just for fun, right?" Li Shimin saw Wang Yin looking at him with a magnifying glass with a strange smile on his face, and immediately looked at him angrily: "Didn't you say you have something serious to do?"

A group of people looked at Wang Yin and wondered: that's weird. . .This magnifying glass was obviously taken out by a fairy, but it seems that he has never seen his appearance before. . .

"Yes, yes, do business, do business." Wang Yin put the magnifying glass back to its original position, and then took out the things he bought before from the system space.

Visual acuity tester: 200 per unit.It is a device that integrates vision detection and lens configuration. It can work continuously for ten hours after charging for one hour. (Now this thing can only be seen in antique shops, are you sure you want to take it out?)
Seeing several new machines that Wang Yin placed on the ground, a group of people immediately gathered around with curiosity: Although they don't know what this thing is for now, as long as they know it is a good thing!Put aside what you don't understand, let's see the rarity first. . .

Li Shimin also stood aside and watched with interest, but he didn't take the initiative to ask about the functions of these machines.

Anyway, since Wang Yin has taken it out now, he will naturally explain what it is used for in a moment. Doesn't asking in front of so many people make him, the emperor, very ignorant?

Although he really didn't know what this thing was for. . .

"Come here, come here, Timo." Wang Yin waved at Lu Qimo.

Lu Qimo opened his mouth and wanted to correct Wang Yin's slip of the tongue, but when he thought it was inappropriate to correct an immortal in front of so many people, he had to close his mouth and walked over obediently: "I'm an immortal, don't say that." Why are you calling yourself Teemo? Even if you call yourself a dog, we have to endure it!
"Sit." Wang Yin took out a stool and handed it to Lu Qimo, motioning him to sit in front of one of the machines: "Put your eyes there, the side with the black frame."

After hearing the words, Lu Qimo sat down on the stool obediently, and then put his eyes in front of the detector.

"You don't need to lean in so hard..." Wang Yin's face turned black when he saw this.

Good guy, I just asked you to put your eyes there, I didn't ask you to push your head in hard. . .

Upon hearing this, Lu Qimo quickly scratched the back of his head in embarrassment, and then moved his head back.

(End of this chapter)