Zhao Qinghuai frowned upon hearing Lin Ying's words. He recalled everyone's symptoms and then asked, "Won't you be unable to see at night?"

Lin Ying gave Zhao Qinghuai a bottle of eye drops: "This is eye drops for treating snow blindness. You can take it with you and put it in the patient's eyes. If the patient's eyes feel more comfortable, more relaxed, or the condition improves, it means it is snow blindness. Don't worry, it's okay to just put a little in and wash the eyes."

Zhao Qinghuai took a large bottle of medicine, put on his military overcoat, and was about to go out, but after taking a few steps, he came back: "So what symptoms do you think this might be?"

Lin Ying shrugged: "It's hard to draw conclusions without seeing the patients. However, if it's just one or two, it might be a physical defect, but if it happens in large numbers, there's probably only one possibility: night blindness."

Zhao Qinghuai was dumbfounded: "Lacking wood?"

Lin Ying rarely saw his blank expression, so she couldn't help but chuckle: "What you're saying isn't wrong. The famous ancient Chinese medicine doctor, Sun Simiao, discovered that people in mountainous areas often suffered from a strange disease where their vision was normal during the day..."

At night, due to insufficient light, they can see nothing, just like sparrows. This condition is called "night blindness," or more scientifically, night blindness.

In Western medical terms, this is caused by a vitamin deficiency in the body. Generally, animal kidneys, as well as various fruits and vegetables, contain vitamin A. Leaving aside animal kidneys, a lack of fruits and vegetables can certainly lead to vitamin A deficiency.

Zhao Qinghuai paused upon hearing this, then asked, "Is there a way to treat this?"

Lin Ying nodded: "Yes, but we need to prepare the materials, and even if the treatment is successful, it's only treating the symptoms and not the root cause, so the condition will still recur."

Zhao Qinghuai thought for a moment: "I'll go and determine the diagnosis first, and then we'll talk."

Lin Ying nodded indifferently, but after Zhao Qinghuai left, she began to think that the best way to treat night blindness was with pig liver and Atractylodes lancea. However, these days, let alone pig liver, there wasn't even any pig hair to be found.

Moreover, this isn't just one person, but many people. Ten pigs might not even be enough.

Therefore, the only usable herb is Atractylodes lancea. Atractylodes lancea is currently the best medicinal herb Lin Ying can find for treating night blindness.

Lin Ying counted her number of Atractylodes macrocephalae, then turned and entered the space.

She found the Atractylodes seeds and began planting them. She repeated this process several times until she had collected enough Atractylodes. Then, she started processing it in the kitchen.

Lin Ying washed all the collected Atractylodes lancea and sliced ​​them. Then she soaked them in glutinous rice water. The water urn, which was originally meant to be waterproof, was filled with more than half of the Atractylodes lancea slices by Lin Ying.

It wasn't until nightfall, when Lin Ying was stir-frying Atractylodes lancea at home, that Zhao Qinghuai hurriedly returned.

“You’re right, it’s night blindness. It’s not just our unit that has it; many people on the farm have it too. We’ve already found a doctor, but we can’t get that much vitamin A right away. So, the situation has been reported to the authorities, and we’re already looking for a solution.”

Lin Ying paused, wondering if this meant she wouldn't have to go through all that trouble, and if she had been presumptuous again.

Zhao Qinghuai added, "By the way, I only used your eye drops on the people in our group. Unexpectedly, a few people found them particularly comfortable. I guess some of them have snow blindness. Didn't you say these drops are harmless to the eyes? So I left the drops for them."

Lin Ying nodded, but her hands didn't stop working. She was already busy, and there was no reason for her to give up halfway.

Just as Lin Ying was feeling down, Zhao Qinghuai walked up to her with a fawning expression and said, "Wife, what are you doing? It smells so good?"

Lin Ying was in a bad mood and didn't see Zhao Qinghuai's expression: "Oh, I just remembered I hadn't processed some medicinal herbs. Haven't you eaten?"

Seeing that Lin Ying didn't react, Zhao Qinghuai figured that flattery might not work, so he brazenly said, "I ate. It was the same few dishes from the cafeteria. Honey, can I ask you something?"

Lin Ying paused, then asked, "What is it?" After saying that, she continued working on her things.

Zhao Qinghuai was a little embarrassed: "Well, it's almost our group's turn to patrol. Most of the people in this group can't see at night, and a small portion even have snow blindness. So I was thinking..."

Lin Ying glanced at Zhao Qinghuai: "Didn't you say you had already found a solution?"

Zhao Qinghuai said helplessly, "These days, everything is in short supply, and we definitely can't get that much of that stuff in a short time. A distant source can't quench an immediate thirst. Didn't you say it's because we're not eating enough vegetables, fruits, and animal liver? We're planning to go hunting in the mountains tomorrow to get some game. But with this weather, we really can't get any fruits or vegetables. Um, don't we have plenty in our warehouse?"

Lin Ying rolled her eyes: "Zhao Qinghuai, if you ever come back and can't get to the point, you should stand outside and sort out your thoughts before you speak!"

Zhao Qinghuai chuckled: "I was just embarrassed, you know? You spent so much time collecting those..."

Lin Ying would naturally feel sorry for herself if she didn't have the space, as she would have a hard time getting by in winter without it. But with the space, she doesn't really feel sorry for herself.

Anyway, at most, she would suffer together when Zhao Qinghuai was around, but when Zhao Qinghuai wasn't around, she would enjoy a life of luxury on her own.

He simply said, "Your regiment has over a thousand people; my little bit of stuff isn't even enough to fill a tooth gap. Even if you take it all, it won't do you any good."

Zhao Qinghuai nodded: "It's not just our family, all the families above the regimental and battalion level have contributed some."

Other groups have a month to wait for support from the rear, but our group can't wait.

Putting everything else aside, at least half of the people need to be able to see it at night. Therefore, for now, we can only provide targeted treatment, and we'll figure out other solutions later.

Lin Ying nodded, indicating she understood. However, there are usually several hundred people. She has stored a lot of things, but it would be used up in just one meal for several hundred people, right?

"Return the jar to me later."

Upon hearing this, Zhao Qinghuai immediately grinned and said, "Don't worry, I'll definitely bring it back to you safely!"

Zhao Qinghuai was just about to go out and call for help—he couldn't carry all that stuff by himself—when Lin Ying called out to him:

"Come back! Take these medicine powders back first. Have the canteen boil a big pot of water with two pounds of this powder, boil it for 30 minutes, and have them drink at least three bowls a day."

Before drinking, steam your eyes with the hot water.

Zhao Qinghuai then realized that Lin Ying had been busy there all along to prepare medicine for them.

He was instantly moved: "Wife, how can you be so good to me!"

He tried to hug Lin Ying, but Lin Ying glared at him and said, "Get out of here, I hate seeing you!"

Zhao Qinghuai chuckled, picked up the half-sack of things Lin Ying pointed to, and walked out.

He could sense that the medicinal herbs in the sack were quite heavy, and he understood that Lin Ying must have used all the herbs she had collected at home.