Chapter 408

"Come one by one and let Merton check your eyesight." outside the Lizheng hall, a group of princes lined up one by one under the leadership of Li Chengqian, waiting for Merton to check their eyesight.

Now that Merton has invented the eyesight chart, Li Shimin just took the opportunity to check the eyesight of all the princes, so as to prevent the example of Princess Changle from appearing again.

"The ninth younger brother is the last to enter school, but if the ninth younger brother comes first!" Li Chengqian looked at the princes and pointed to the last Li Zhi.

Seeing this, Li Shimin nodded with satisfaction. Recently, Li Chengqian's performance has satisfied him very much. He especially likes the sight of brotherly harmony.

Li Zhi looked around curiously. He didn't understand what it meant, so he had to go to the position designated by Merton.

"The ninth Prince covered his left eye first to see which direction this one was heading?" Merton pointed directly to the line of normal people's vision.

"Down!"

Li Zhijin studied at the latest, and learned to cheat and play slippery. He was not short-sighted and quickly gave the correct answer.

Merton pointed up and down again, and Lizhi answered like a stream.

"Your Majesty, the vision of the ninth Prince has not been damaged." Merton bowed to Li Shimin.

Li Zhi proudly walked up to Li Shimin and said in a charming voice, "father, is the child's eyes good?"

When Li Shimin heard the speech, he couldn't help but feel Li Zhi's head proudly and breathe a sigh of relief. The eldest Sun Queen was more compassionate and hugged Li Zhi in her arms.

However, the next examination suddenly made Li Shimin look sad. The Royal schoolwork was very heavy. In addition to Li Zhi, who had just entered school, the next four princes, except Li you, who was ignorant and incompetent, all showed varying degrees of myopia.

"Green Finch, it's your turn!" Li Chengqian looked at Li Tai.

With a bitter smile, Li Tai came to the position where his brothers had stood before.

"Which direction is this?" Merton asked, pointing to the line of normal vision.

Li Tai shook his head decadent.

Merton pointed up a few. Li Tai still shook his head. Finally, he barely recognized it. The result was only better than Princess Changle.

Merton sighed and said, "Your Highness the king of Wei is the most hardworking on weekdays. His eyes are seriously damaged. His eyesight is only one third of that of normal people."

Li Shimin said with hope on his face, "can the Green Finch restore his eyesight like Changle?"

Merton shook his head and said, "Princess Changle is acute myopia, and it is still possible to recover. His Highness the king of Wei is caused by hard study day after day. Although the rest can be improved, the effect is very little."

"My poor child!" the eldest grandson empress burst into tears.

"Empress mother, don't worry. Although the children's ministers have impaired eyesight, they have gained knowledge. They don't regret that they can die in the morning and evening." Li Tai said proudly.

Merton couldn't help but look at Li Tai with new eyes. It's not for no reason that later Li Tai can win the favor of Li Shimin and empress Chang sun. On this remark, Merton gave him nine points, and the rest is afraid of his pride.

"Don't worry about the queen. She found it early at the moment. If she can combine work and rest and cooperate with eye exercises in the future, she can ensure that her eyesight will not deteriorate." Merton said.

Next is Li Ke, king of Wu.

As for Li Ke, king of Wu, Merton has not seen a few times. He is more impressed by his outstanding performance in the year-old imperial college examination, but he is not high-profile.

After a careful examination, Merton nodded and said, "although his highness King Wu's eyes are a little nearsighted, they do not affect his normal study and life. Just pay more attention in the future."

"Thank you, Lord Mo!" Li Ke said with an arched hand, as calm as ever.

The last one to check was Li Chengqian. Merton pointed out a few times, put away the vision chart and said, "Your Highness is at the critical point of myopia. At present, as long as it doesn't aggravate, it won't affect daily life, but if it continues to deteriorate, I'm afraid you need to wear myopia glasses."

So far, all the prince's eye tests have been completed. Except Li you and Li Zhi, almost all the prince have different myopia.

Of course, the most serious is Li Tai, king of Wei. His proud talent has brought about eye damage.

"Merton, can't the Green Finch's eyesight really recover?" Li Shimin asked reluctantly.

Merton nodded affirmatively: "the myopia accumulated over time is absolutely impossible to recover, but your majesty should not worry. When Weichen returns to Mojia village and makes myopia glasses, his Highness the king of Wei will see things as normal as ordinary people."

"Lord Mo, are you really sure to make Wang's eyes as clear as before?" Li Tai said urgently.

Myopia has plagued him for a long time. He has long dared not expect that clear feeling, but Merton can even make reading glasses to restore the eyes of the elderly, and maybe his own eyes.

Merton nodded: "myopia and reading glasses have the same reason. Weichen already knows its principle. Making myopia glasses in the future is not a problem."

Li Tai said happily, "since I was ten years old, I have covered my eyes like a layer of gauze. I am no longer blessed to enjoy the beautiful scenery in the distance. Please don't let me wait too long."

Merton moved in his heart and said, "you don't have to wait too long for his Highness the king of Wei. Weichen can immediately let his Highness the king of Wei feel as clear as before."

"Seriously?"

People were immediately skeptical.

Merton definitely nodded and said, "I don't know if there is ice in the palace, some very transparent ice!"

Of course, Merton can't change his myopia lens, but now it's a cold winter and December day. Ice is everywhere. Ice and glass are two equally transparent objects. He decided to make a pair of ice myopia lenses for Li Tai in a very short time.

Soon, pound brought a large piece of transparent ice from the imperial dining room and said, "I inform your majesty that most of the ice in the palace is white. Only the boiled water boiled by the imperial kitchen yesterday and frozen last night, there is an extremely transparent ice left."

Merton nodded. Ordinary water is white when it freezes because there are many bubbles in the water. When it freezes, it is frozen before it has time to escape. This is white. The boiled water has exhausted the air in the water as much as possible. This is the best tool for making concave lenses.

Merton took a breath, planed the ice into a thin piece, then rubbed it back and forth with his fingers, and melted the center of the ice a little bit with his fingers

Soon, a simple concave lens had been formed in Zi Merton's hands.

"Your Highness King Wei, please look!" Merton handed the ice concave lens to Li Tai.

Li Tai was curious to take over. Suddenly, he felt sick in his hands stimulated by the cold ice. He couldn't wait to put it in front of him, and suddenly a clear scene appeared in front of him,

"I can really see!" Li Tai suddenly got up and looked into the distance like a child holding borneol. He could see the dry branches moving with the wind fifty steps away.

"Your Highness the king of Wei, please look here!" Merton stood in front of the chart again and pointed to the last line.

"Down!"

"Right!"

Li Tai answered like a stream, all correct.

"Ha ha, your Highness the king of Wei's eyes are comparable to the archers in the army." Merton laughed.

The princes were surprised that Merton could instantly restore Li Tai's eyesight with ice. It was amazing.

Li Tai was excited until the ice in his hand melted. He reluctantly put down the ice in his hand. Merton's secret skill really deserves its reputation. Since Merton can make myopia glasses with ice, he must be able to make myopia glasses like reading glasses.

And the time for him to regain his sight is just around the corner.