Ying Zheng definitely didn't want to see anything vague in the future, so he nodded and agreed, and ordered someone to summon Ying Feiyu over.

After Lian'er briefly described the situation, she stared at him with anticipation with Ying Zheng!

"It's not curable!"

However, Ying Feiyu didn't think about it, and directly refused.

"Huh?"

Lian'er frowned, disappointed.

"Hmmm! I guessed it, too! This kid is not a fairy, how can he bring me back to life? ”

This time, on the contrary, Yingzheng was very open-minded, shook his head and smiled bitterly.

"Feiyu, can't even you do it?"

Lian'er still has a glimmer of hope.

"There is a way!"

Ying Feiyu said categorically.

"What? Didn't you just say that it can't be cured? How can this be said to be a way? ”

The two sentences that don't match before and after really confused Yingzheng.

Of course, he still hoped that what the kid said was true, and that his eyes could be restored to their original state.

But I was worried that this kid was tricking him, so he said this inconsistent thing!

"Erchen did say that it couldn't be cured, but he didn't say that there was no way to adjust it!"

Ying Feiyu still pretended to be innocent.

"This ...... What's the difference between the two? ”

"It's a big difference......!"

Ying Feiyu smiled leisurely: "Father's situation is called presbyopia, which is equivalent to the decline of human body functions, and it is indeed incurable!" But it can be adjusted in other ways! ”

"How?"

Hearing this, Ying Zheng seemed to see hope, and his eyes were shining with expectation.

"Feiyu, don't sell it, let's talk about it quickly!"

Lian'er was also very anxious, and couldn't bear to watch Yingzheng worry about her weakened eyesight every day.

"This ...... Even if the son says it, his father may not be able to understand it! ”

Ying Feiyu was just about to speak, and then thought about it, there were a lot of professional terms involved, and even if he did, this old man would have to be confused.

When the time comes, I have to ask what those technical terms mean.

As a result, it takes a lot of time just to explain this.

Let's put it another way, "Let's put it this way! Father should know about telescopes! It can pull things from the distance to the near through the lenses, and presbyopia needs to be put near and far away! ”

Although presbyopia is different from farsightedness, it will be easier for scumbags to understand this way.

"I see......

Sure enough, after Ying Zheng heard this, he nodded clearly.

Then, as if thinking of something, he began to frown slightly, "Then when I go out again, won't I have to carry a telescope with me at all times?" ”

Although the problem can be properly solved, he finds it too inconvenient to think about it!

"That's not necessary, Erchen has a better solution!"

Ying Feiyu smiled mysteriously.

"How?"

"This father doesn't have to worry about it, just go back and bring things to the ministers!"

"It's good!"

With Ying Zheng's understanding of Ying Feiyu, if this kid doesn't want to say it, even if he asks through his mouth, this kid will never tell him.

It's better to go back and bring things over, and he will know about it!

"Feiyu, how long will it take?"

Lian'er spoke softly and asked for Yingzheng.

"One day!"

Ying Feiyu smiled.

"One day? Just one day? ”

Ying Zheng's eyes widened, quite surprised.

"That's right! After tomorrow, Erchen will come over with things! ”

Ying Feiyu fixed his head.

"You stinky boy, what can be solved in just one day, why didn't you tell me earlier? I've been blurry for so long, and I thought I'd be blind in a while! ”

Speaking of which, Yingzheng blamed him.

"Father, how can you blame your sons for this? You didn't say anything about the situation before, and Erchen doesn't know about it! ”

Ying Feiyu was really defeated by this old thing.

It didn't take long for this to be normal, and the unreasonable energy came up again!

He is not a roundworm in the stomach of this old thing, how can he know that he has presbyopia?

"You stinky boy, haven't you counted how old I am? Can you not spend your eyes? ”

Knowing that there was a proper solution, Ying Zheng felt a lot more at ease, and he lost his previous melancholy, and complained with confidence.

"Okay, Brother Zheng, Fei Yu is right, if you don't say it, he won't know what is wrong with your body! Wouldn't that help solve it? ”

Lian'er stood on her son's side and spoke comfortingly.

"Humph! Don't delay your work, boy, I'm still waiting to read tomorrow's paper! ”

Ying Zheng snorted coldly and began to leisurely pick up the teacup and taste tea.

Looking at that posture, the previous worries are no longer at all!

"If there is nothing else, the son will retire first!"

Ying Feiyu said goodbye and turned out of Yuxiu Palace.

On the way to the imperial study, while rolling his eyes, he muttered angrily, "This old guy, it's so arrogant to ask someone to do something!" If you knew this was the case, you should have put it back! ”

But muttering to muttering, I have already said that I will bring something that can solve presbyopia in a day, and now I have to arrange someone to do it!

In later generations, presbyopia is also an extremely common phenomenon, and most elderly people will experience this condition!

It can be treated with surgery, but most people don't choose to do it.

After all, surgery has a certain risk, and there is no need to take this risk if a pair of glasses can solve it!

Besides, presbyopia is only a little blurry when looking at the near font, and when looking at distant things, it is almost unaffected!

In Daqin, there are definitely not a few people like Yingzheng.

No one mentioned it before, and Ying Feiyu didn't pay attention to this aspect.

Now that the scumbag has mentioned it, it is time to study the glasses.

In addition to presbyopia, there should be a lot of myopia in Daqin!

In the past, all the oil lamps were used, and the light was not good, and in order to survive the poor, the children of the poor family could only study hard, day and night.

This also leads to myopia!

When glasses are invented, this problem will be solved!

If you want to make glasses, you must first have an edging machine.

It is definitely not possible to draw drawings and let Huang Yuan lead people to study and manufacture.

So he intends to redeem one directly from the system.

Redeem some finished lenses and send them to the glass factory so they can make them according to the method!

First fool Yingzheng's side, and then turn around and let the glass factory manufacture lenses in large quantities, polish them according to the method, and solve the needs of other people in Daqin!

Thinking about all this, Ying Feiyu returned to the imperial study and found a lens edging machine in the system.

This thing is not cheap, it even costs him 30,000 prestige points!

The prestige value that he had finally accumulated, and after his mind moved slightly, it instantly lost 30,000!

The exchanged items appear in the system warehouse, and then they are taken out directly and appear in the Imperial Study!

The edging machine is not big, so I found a few small servants to put it in a wooden box and carry it to the glass factory!