Suddenly Blind at 20? How One Dose of Medicine Brought a Young Man’s Sight Back

Patient search terms: eyes suddenly can’t see / sudden blindness / eye stinging / red painful eyes / eyes on fire / young person’s eye trouble / kidney deficiency / wine and women damaging the body / depleting the body

Medical terms for this condition: sudden blindness · kidney essence deficiency · liver-kidney yin deficiency · deficient fire flaring upward

Opening: a twenty-year-old, and his eyes simply gave out

Doctor Luo Dalun continues his stories of how Doctor Xue Lizhai treated his patients. The patient in today’s case is a twenty-year-old young man — and no matter which era you’re talking about, ancient or modern, twenty is a genuinely young age. People married at thirteen or fourteen in old China, but still — twenty is young.

Yet this young man had a terrifying illness: both eyes stabbing with pain and turning red, aching in waves. Worse still, when Doctor Xue Lizhai felt his pulse, he said something that made the hair stand up on the back of your neck — and the very next morning, it came true.

💬 Note from Doctor Luo: This case is short and sharp, but the logic behind it is well worth savoring. Doctor Xue Lizhai was the director of the Imperial Academy of Medicine in the Ming dynasty and left more than three thousand case records. He was a rigorous recorder and never wrote carelessly. On the surface this is a story about the eyes; underneath, it’s about how a young person can run his body into the ground — and that lesson has not aged a day.

Who was the patient: a young man fond of wine and women

The case record sums up this patient’s lifestyle in four characters — su shi jiu se (素嗜酒色): he habitually indulged in wine and lust.

“Su” means usually, all the time. In other words, this young man drank constantly and chased pleasure relentlessly; his life was far from disciplined. Doctor Luo’s analysis: those four characters already tell you the cause of the disease.

What does wine damage? Wine is fiercely hot in nature — both yellow rice wine and clear liquor have heating properties. Drink it and your blood boils, so wine harms the liver, harms yin, and harms the spleen and stomach too. What does lust damage? Overindulgence in sex harms the kidneys, and especially the kidney essence (shen jing).

Put wine and lust together and it gets even worse — the wine becomes an accomplice to the crime. Drinking alone merely wounds the liver; but after drinking, a person gets excited and loses control, and sex after drinking drains the kidney essence terribly. When Doctor Xue Lizhai saw patients, he always paid close attention to their lifestyle habits — without that knowledge, the illness is hard to cure properly.

The symptoms: both eyes stabbing and red, better some days, worse others

The young man had been unwell for a while when he came to see Doctor Xue Lizhai. His complaint: both eyes red, painful, stabbing — sometimes a little better, sometimes red and aching again.

💬 Note from Doctor Luo: Remember — red, painful eyes are not always excess fire (shi huo). This young man’s eyes stung and flushed, which certainly looked like “fire rising,” but that’s not what was really going on at all. Sorting out that true pattern is exactly where Doctor Xue Lizhai’s brilliance shows.

The diagnostic highlight: one touch of the pulse, and Doctor Xue declared “the eyes will go blind”

Doctor Xue Lizhai felt his pulse and found both chi positions (the kidney pulse positions at the wrist) large and forceful — beating big and strong. But when he pressed deeper: weak beneath the surface (an zhi wei ruo).

Doctor Luo explains: this “large and forceful” is not the vigorous greatness of abundant life force — it is a deceptive, deficient kind of largeness. It’s like a person fighting for life who has no strength left but still struggles desperately, so the pulse looks big — it’s a rebound, a false impression. Press down and underneath is empty, weak.

What does this pulse tell you? The kidney qi and kidney essence are insufficient, with a bit of deficient heat and weakness — that’s why the pulse is large and forceful.

After feeling the pulse, Doctor Xue Lizhai said something startling:

“A young man with this pulse — his eyes will go blind. The eyes will develop a serious problem; he may end up unable to see anything at all.”

And the very next morning, the young man really could not see. “Suo tu er xing” — groping his way along, his hands feeling for the door as he walked; “bu bian tian ri” — he raised his eyes and could not even make out the sun in the sky.

💬 Note from Doctor Luo: Isn’t this amazing? Yesterday the pulse-reading said you might go blind, and today you actually are blind — everyone was stunned, and they thought Doctor Xue Lizhai must be some kind of fortune-teller. What does this show? It shows his experience was extraordinary — one look at the pulse and he knew the man had reached the edge of the cliff. And remember, as director of the Imperial Academy of Medicine, he wrote his case records for the world to read — he would never exaggerate or invent.

The prescription: Mai Wei Di Huang Wan, cured with one dose

Everyone urged Doctor Xue Lizhai to write a prescription. What did he prescribe?

The ingredients of Liu Wei Di Huang Wan (Six-Ingredient Rehmannia Pill) decocted as a soup, with mai dong (ophiopogon) and wu wei zi (schisandra) added — one dose cured it.

Let’s be clear about “the ingredients of Liu Wei Di Huang Wan”: he used the formula of Liu Wei Di Huang Wan, but instead of taking it as pills, it was boiled as a decoction, with the two additions. This formula is the Mai Wei Di Huang Wan you can buy in pharmacies today.

What exactly makes this formula so clever?

• Liu Wei Di Huang Wan is the classic formula for nourishing kidney yin: shu di huang (prepared rehmannia) nourishes the kidney essence, shan zhu yu (cornus fruit) nourishes the essence of heart and liver, shan yao (Chinese yam) nourishes the essence of lung, spleen and kidney — three tonics that build the essence of the five viscera, with kidney essence as the focus;
• Mai dong (ophiopogon) nourishes lung yin — the lung belongs to Metal, the kidney to Water, and Metal generates Water. Nourish the lung Metal and you generate kidney Water. This is the “nourish the mother to feed the child” strategy: directly tonifying the kidney may not work well, but if you first fill up the lung — the mother — the kidney water naturally becomes sufficient;
• Wu wei zi (schisandra) astringes the essence of the five viscera — because this is deficient fire flaring upward, the schisandra holds in the essence you just tonified; otherwise the supplemented energy would dissipate and stoke fire everywhere.

💬 Note from Doctor Luo: This strategy of “nourishing lung Metal to generate kidney Water” is really sophisticated. Let me give you an example — Beijing has a famous gynecology master, old Dr. Chai Songyan (Chai Lao), whose appointments are harder to get than anywhere else; patients line up from all over the country. How does she tonify the kidney? She tonifies the lung first, and while tonifying the lung adds qi-descending herbs like xing ren (apricot kernel), so the qi is guided downward and the kidney water fills up naturally. Some women with amenorrhea (missed periods) — with this approach, no heavy tonics in the formula at all, and once it’s given, their periods return. That’s the beauty of Chinese medicine’s visceral-pattern thinking.

So what does a yin-deficient person like this young man look like? Doctor Xue’s case record doesn’t go into that level of detail — with more than three thousand cases, he couldn’t record every detail — but following the rules of yin deficiency we can infer: the tongue is red, the coating very thin or absent; palms and soles run hot; the person is easily irritable; in severe cases there is bone-steaming tidal fever (heat radiating from inside the body) and night sweats. All these yin-deficient signs show up in the pulse.

Behind the instant cure: why did one dose do it?

One dose of the medicine and his eyes cleared — he could see again. To many people, that speed seems unbelievable.

Doctor Luo’s answer: the key is he was young.

• A body in its twenties has a good foundation. The damage was severe, but recovery is fast — qi and blood are vigorous, and with a little adjustment and tonifying, he got better at once;
• If an elderly person had indulged in wine and lust like this, forget one dose — even his life might not have been saved.

So Doctor Xue’s diagnosis was clear and his direction correct: once the deficient fire settled and the kidney essence was replenished, the eyes recovered immediately.

A further thought: if the young don’t change, the body collapses ten years later

The case record ends there, but Doctor Luo adds a special warning: after this case, there really should have been one more step — educating the young man to change his habits and taking tonic medicine for a while to slowly rebuild himself. Why?

Because a young person responds to medicine quickly — and even recovers quickly without medicine. So he easily thinks: “I got sick, no big deal, I’ll sleep it off and keep going!” So he goes back to drinking and indulging. But the body is already overdrawn; when he really gets older, illness hits hard.

💬 Note from Doctor Luo: I see this every day in my practice — people who were wildly indulgent when young, living it up without a care, and ten years later their bodies are completely wrecked. Why? The stronger and more vigorous you are, the more you squander; the more you squander, the more violently illness strikes; and the faster you recover, the less seriously you take it, so you burn the candle twice as hard. In cases like this, if the person never changes his lifestyle, come back in ten years — even with the director of the Imperial Academy of Medicine at his bedside, his life may not be saveable.

Doctor Luo’s parting advice: the body cannot afford squandering

Doctor Luo sums up the lesson of this case in two points:

• Illness strikes young people suddenly — because they burn through themselves hard. Young people today binge-watch dramas all night, dance in clubs until three or four in the morning — and cases of sudden blindness and all kinds of acute illness are increasing, and they are usually not mild illnesses;
• Young people recover fast, but the faster they recover, the more dangerous it is — an elderly person who gets sick knows his body is weak and obediently takes medicine and rests; a young person thinks nothing of it, keeps burning the candle at both ends, and ends up overdrawn worse than before.

Doctor Xue’s case record doesn’t spell any of this out, but “this one case leaves enormous room for reflection.”

💬 Note from Doctor Luo: When I treat elderly patients, I measure treatment in years — my mother’s chronic nephritis took a full year of Chinese medicine to completely heal; rheumatoid arthritis, about half a year; thrombocytopenia, also getting on a year. Old people recover slowly, but they know to take care of themselves. And young people? With qi and blood so vigorous, sometimes they heal without any medicine — which is exactly why they should take their bodies more seriously, not less. This case tells us: youth is not a license to squander — the body cannot afford to be overdrawn.

Based on Doctor Luo Dalun’s lecture on Doctor Xue Lizhai’s case records; the case is from The Medical Case Records of Xue Lizhai (《薛氏医案》).