Ying Zheng definitely didn't want everything to be blurry in the future, so he nodded in agreement and ordered people to summon Ying Feiyu over.
After Lian'er briefly described the situation, she and Ying Zheng stared at him expectantly!
"It can't be cured!"
However, Ying Feiyu refused without even thinking.
"ah?"
Lian'er frowned, disappointed.
"Yeah! I guessed it too! This kid is not a god, how can he make me rejuvenate?"
This time, Ying Zheng was very open-minded, shaking his head and smiling bitterly.
"Feiyu, can't you even do anything about it?"
Lian'er still had a glimmer of hope.
"There is a way!"
Ying Feiyu said decisively.
"What? Didn't you just say that it can't be cured? Why do you say there is a way now?"
The two inconsistent sentences really confused Ying Zheng.
Of course, he still hoped that what this kid said was true and that his eyes could be restored to their original state.
But he was also worried that this boy was lying to him, so he said such inconsistent words!
"My son did say that it can't be cured, but he didn't say that it can't be adjusted!"
Ying Feiyu still pretended to be innocent.
"What...what's the difference between the two?"
"The difference is huge...!"
Ying Feiyu smiled leisurely and said: "Father, this condition is called presbyopia, which is equivalent to the decline of human body function. It is indeed impossible to treat! But it can be adjusted through other methods!"
"How to adjust?"
After hearing this, Ying Zheng seemed to have seen hope, his eyes shining with hope.
"Feiyu, stop being so pretentious and talk about it quickly!"
Lian'er was also very anxious and couldn't bear to watch Ying Zheng worry about his weakened eyesight every day.
"This...even if my son says it, my father may not be able to understand it!"
Ying Feiyu was about to speak, but then he thought about it, it involved a lot of professional terms, and even if he explained it, the old guy would still look confused.
At that time, we will still have to ask what those professional terms mean.
As a result, just explaining these would waste a lot of time.
Or explain it in another way, "Let's put it this way! Father should know about telescopes! It can bring distant things closer through the lens, while presbyopia requires nearby things to be brought far away!"
Although presbyopia is different from farsightedness, describing it this way will make it easier for Daddy to understand.
"I see……!"
As expected, Ying Zheng nodded understandingly after hearing this.
Then, as if he thought of something, he started to frown slightly, "Then when I go out again from now on, shouldn't I have to carry a telescope with me at all times?"
Although the problem can be properly solved, he still feels it is too inconvenient no matter how he thinks about it!
"That's not necessary, I have a better solution!"
Ying Feiyu smiled mysteriously.
"what way?"
"Father, there is no need to worry about this. I will just bring the things back later!"
"That's fine!"
Based on Ying Zheng's understanding of Ying Feiyu, if this boy didn't want to tell him, even if he asked openly, this boy would never tell him.
It's better to go back and bring the things over, and he will naturally know about it!
"Feiyu, how long will it take?"
Lian'er spoke softly and asked for Ying Zheng.
“Just one day!”
Ying Feiyu smiled.
"One day? Just one day?"
Ying Zheng's eyes widened in surprise.
"That's right! After tomorrow's court, I will come over with my things!"
Ying Feiyu nodded firmly.
"You brat, why didn't you tell me earlier about something that can be solved in just one day? It made me see things blurry for so long, and I thought I would go blind in a while!"
Speaking of this, Ying Zheng started to blame him.
"Father, how can you blame Erchen for this? You didn't say anything about the situation before, and I don't know anything about it either!"
Ying Feiyu was really defeated by this old guy.
Not long after it became normal, that unreasonable energy came up again!
He wasn't the roundworm in this old guy's stomach, so how could he possibly know that he had presbyopia?
"You brat, don't you know how old I am? Can you stop having blurry eyes?"
Knowing that there was a proper solution, Ying Zheng felt a lot more at ease. He was no longer melancholy as before, and he could complain with confidence.
"Okay, Brother Zheng, Feiyu is right. If you don't tell him, he won't know what's wrong with your body! This will help solve it!"
Lian'er stood on her son's side and offered words of comfort.
"Hmph! Then don't waste your time, kid. I'm still waiting to read tomorrow's newspaper!"
Ying Zheng snorted coldly and began to leisurely pick up the tea cup and sip the tea.
Looking at that posture, all the worries I had before are gone!
"If there is nothing else, I will leave first!"
Ying Feiyu said goodbye and turned around to leave Yuxiu Palace.
On the way to the royal study, he rolled his eyes and muttered angrily, "This old guy is so arrogant when asking for help! If I had known this, I should have delayed the time!"
But mumbling is mumbling, I have already agreed to take one day to bring something that can solve the problem of presbyopia, and now I have to arrange for someone to do it!
In later generations, presbyopia is also an extremely common phenomenon, and most elderly people will suffer from this condition!
It can be treated with surgery, but most people don't choose to do it.
After all, surgery has certain risks. There is no need to take the risk when a pair of glasses can solve the problem!
Moreover, presbyopia only makes things a little blurry when looking at nearby fonts, but is almost unaffected when looking at things far away!
In Da Qin, there are certainly many people like Ying Zheng in this situation.
No one mentioned it before, so Ying Feiyu didn't pay attention to this aspect.
Now that Daddy Scumbag has mentioned it, it’s time to research glasses.
In addition to presbyopia, there should be quite a few people in Daqin who are short-sighted!
In the past, oil lamps were used, and the light was not good. In order to get ahead, children from poor families had to study hard, day and night.
It also leads to myopia!
When glasses are invented, this problem will be solved!
If you want to make glasses, you first need an edging machine.
It would definitely not work if Huang Yuan led people to research and manufacture the existing drawings.
So he planned to redeem one directly from the system.
Then exchange some finished lenses and send them to the glass factory to make them according to the method!
Fool Ying Zheng first, then let the glass factory mass-produce lenses and grind them according to the method to meet the needs of other people in Daqin!
After thinking about all this, Ying Feiyu returned to the imperial study and found a lens edger in the system.
This thing is not cheap, it actually costs him 30,000 reputation points!
The reputation value he had finally accumulated was reduced by thirty thousand in an instant after he made a slight movement of his mind!
The exchanged items appeared in the system warehouse, and then were taken out directly and appeared in the imperial study room!
The edger was not big, so I found a few waiters to put it into a wooden box and carry it to the glass factory!
