Self-Assessment: First, Check Your Symptoms Against the Following
- When you wake up in the morning, do your eyes feel dry and gritty, as if sand has gotten into them—with a noticeable friction when blinking, taking a while to feel comfortable again?
- During the day, do you find your vision blurring after less than an hour of looking at a computer or phone screen, making you want to rub your eyes uncontrollably?
- Besides dryness, do you also experience a dry mouth, dry throat, or a feeling of heat in your palms and soles after falling asleep?
- Are your eyes red and sensitive to light, with tears flowing uncontrollably when facing wind or air conditioning?
- On the day after staying up late, do you experience not only dry eyes but also soreness and weakness in the lower back and knees, dizziness, tinnitus, or irritability and a short temper?
If you meet three or more of the above criteria, your eyes are probably no longer just "dehydrated."
On the surface, dry eyes may appear to be insufficient fluid at the ocular surface, but in traditional Chinese medicine (TCM) clinical practice, it involves the coordinated relationship of multiple viscera. Why does your dryness worsen specifically after staying up late? And why, with the same symptom of dryness, do some people feel chills while others have a dry mouth, thirst, and irritability? To answer these questions, we must begin with "syndrome differentiation" (bianzheng).
Dryness Is Only the Surface: The Eyes and the Five Viscera Have Always Been One
The TCM classic Huangdi Neijing · Lingshu · Discussion on Great Confusion states: "The essential qi of the five viscera and six bowels all ascend to pour into the eyes, producing vision." The ability of the eyes to see and to remain moisturized depends not only on the eyeball itself, but on the essential qi from the five viscera and six bowels ascending to nourish them. Whether the essential qi of the viscera is sufficient directly determines the state of nourishment of the eyes. Staying up late is precisely an act of overdrawing the reserves of the five viscera.
Therefore, dry eyes after staying up late are, in essence, an "overdraft" surfacing. During the day, the eyes consume fluids through use; at night, the body should be at rest, allowing liver blood to return and yin qi to repair. When you force yourself to stay awake, you keep the viscera in a state of sustained depletion. Different individuals deplete different viscera, and the nature of the dryness they experience differs accordingly. In clinical practice, dry eyes after staying up late are most commonly seen in three patterns: Liver-Kidney yin deficiency, Liver qi stagnation transforming into fire, and Spleen deficiency with weak qi. Only by first distinguishing which pattern predominates can the appropriate treatment direction be determined.
Pattern One: Liver-Kidney Yin Deficiency—Water Failing to Nourish Wood
Individuals in this category often experience dry eyes after staying up late accompanied by soreness and weakness in the lower back and knees, dizziness, tinnitus, difficulty falling asleep, profuse dreaming, and night sweats. Eye redness may be mild, with more pronounced dry pain and photophobia. On tongue examination, a red tongue with scant coating or scant fluid is common, and the pulse is typically thin and rapid. From the perspective of pathogenesis, the Liver opens into the eyes; the Liver stores blood, and the eyes receive blood to see. The Kidney stores essence, and the Liver and Kidney share a common source, with essence and blood mutually generating each other. Staying up late most directly depletes the yin of the Liver and Kidney. Once yin fluid is deficient, water fails to nourish wood, liver blood cannot ascend to nourish the eyes, and the eyes lose their moisture—dryness follows.
The disease location is in the Liver and Kidney; the disease nature is yin deficiency with loss of moisture; and the disease trend is one of slow consumption, transitioning from excess to deficiency. The treatment approach for this condition should return to the principle stated in Huangdi Neijing · Suwen · Chapter Ten on the Generation of the Five Viscera: "The Liver receives blood and thus the eyes can see"—for the eyes to remain moist, there must first be sufficient blood supply as a foundation. Blood fullness is closely related to sleep-wake rhythms, so at the lifestyle level, these individuals should avoid staying up late and try to fall asleep before the Zi hour (11 PM–1 AM). In terms of diet, foods that nourish the Liver and Kidney, such as black sesame, mulberries, pork liver, and wolfberries, may be considered, but specific combinations and amounts should be determined by a licensed TCM practitioner based on individual constitution. Regarding emotions, those with Liver yin deficiency tend to be irritable or anxious—the more anxious one becomes, the more yin is consumed. Slowing down is a kindness to the Liver. For exercise guidance, gentle activities such as brisk walking and Baduanjin (Eight Pieces of Brocade) may be helpful, whereas vigorous exercise that causes profuse sweating may further damage yin and should be approached with caution.
Pattern Two: Liver Qi Stagnation Transforming into Fire—Scorching Fluids and Injuring the Eyes
Another category of people, after staying up late, experiences dry eyes with redness of the conjunctiva, increased eye discharge, irritability, bitter taste, dry throat, distending headache, and even fullness in both hypochondriac regions. On tongue examination, a red tongue with thin yellow coating is common, and the pulse is wiry or wiry and rapid. Their dryness does not actually stem from a "deficiency of fluids," but rather from fire continuously "baking" the fluids—the fluids themselves are still present, but they are being consumed too quickly by the fire. This is like water in a pot being evaporated by a strong flame: the problem is not that the pot lacks water, but that the fire is too intense.
For those with Liver qi stagnation transforming into fire, the disease location is in the Liver and Gallbladder; the disease nature is excess fire scorching fluids; and the disease trend is acute consumption, moving from qi to blood. These individuals typically live at a fast pace, carry heavy mental burdens, and experience significant stress. Staying up late further aggravates Liver qi constraint, which over time transforms into fire. Fire tends to flare upward, directly attacking the head and eyes. TCM theory states that "when qi is in excess, it becomes fire." This fire differs from true excess heat in that its root lies in the unsmooth flow of qi and blood. Therefore, the key to treatment lies in unblocking the flow of qi, rather than simply clearing heat. In terms of diet, these individuals should eat less pungent, fried, and greasy food, and avoid alcohol and barbecue, to reduce the burden on the Liver and Gallbladder in their draining and discharging functions. Emotional regulation is especially important for this pattern—people with Liver qi constraint often "suppress" their emotions within the body. Expressing them, writing them down, or talking them out are all ways to give Liver qi an outlet. As for daily routine, staying up late is more harmful to this group than to others, because the night should be a time for qi to be stored and gathered. Forcing oneself to stay awake is equivalent to forcing Liver qi to continue "working overtime." In terms of exercise, jogging and racket sports can help disperse stagnant qi, but should not be performed right before bedtime. It should be emphasized that these treatment principles are provided for knowledge-sharing purposes only; individual treatment plans must be determined by a licensed TCM practitioner through in-person consultation.
Pattern Three: Spleen Deficiency with Weak Qi—Clear Yang Failing to Rise
The third pattern is entirely different from the previous two. Dry eyes are accompanied by fatigue and lack of strength, sallow complexion, poor appetite, abdominal bloating after meals, loose stools, and heavy eyelids that feel "too heavy to lift." On tongue examination, a pale, enlarged tongue with tooth marks and thin white coating is common, and the pulse is soft and weak. In these individuals, dryness is neither due to yin deficiency nor fire excess, but rather due to deficiency of Spleen qi with failure of clear yang to ascend—the refined substances transformed and transported by the Spleen and Stomach cannot be delivered to the head and face, so the eyes do not receive the nourishment they need. This is like a tree root lacking water, causing the leaves to wilt.
The Spleen is the foundation of acquired constitution and the source of qi and blood generation. For the Spleen and Stomach, staying up late disrupts the rhythm of digestion and absorption. The night should be a time for the gastrointestinal tract to rest; forcing oneself to stay awake easily leads to dysfunction of the Spleen and Stomach, which in turn affects the generation of qi and blood. The eye orifices lose their nourishment, and dryness arises. The disease location is in the Spleen and Stomach; the disease nature is qi deficiency with failure to ascend; and the disease trend is chronic consumption, progressing from deficiency to fullness. At the lifestyle level, these individuals should consume food that is warm, soft, and easy to digest, and avoid raw, cold, or chilled foods to prevent damage to Spleen yang. Meals should be eaten slowly with thorough chewing, and one should stop at seven-tenths full to leave room for the Spleen and Stomach to transport and transform. As for daily routine, in addition to reducing late nights, they should also take a short nap at midday to give the Spleen and Stomach qi an opportunity to recover. In terms of emotions, excessive rumination damages the Spleen, and individuals with Spleen and Stomach weakness tend to "overthink." They need to deliberately practice shifting their attention from mental rumination to bodily sensations. For exercise guidance, gentle activities such as walking and Tai Chi are more suitable, while intense exercise may exacerbate qi deficiency. It is recommended that these care approaches be implemented under the guidance of a licensed TCM practitioner, based on a comprehensive assessment of tongue, pulse, and bodily sensations.
Same Disease, Different Treatments: Same Dryness, Different Roots
Looking at the three patterns side by side, for the same symptom of dry eyes after staying up late, one person may need to nourish yin, another to soothe the Liver, and yet another to strengthen the Spleen. This is what TCM calls "same disease, different treatments" (tong bing yi zhi), as stated in Huangdi Neijing · Suwen · Chapter Five on the Correspondence of Yin and Yang: "Examine yin and yang to distinguish softness and hardness; treat yang diseases through yin, and yin diseases through yang; determine the state of qi and blood, and keep each in its proper domain." Dryness is merely a common surface manifestation; the true differences lie hidden in the deficiency or excess, cold or heat of the viscera. TCM never treats "eye pain by treating the eyes alone," but rather infers which link in the system has failed by observing subtle clues throughout the body.
In clinical practice, some patients do not present with a single, pure pattern—they may exhibit a complex combination of two patterns. For example, one might have both Liver-Kidney yin deficiency with lower back soreness and Liver qi stagnation transforming into fire with irritability; or Spleen deficiency with weak qi accompanied by yin deficiency with dry mouth. This is precisely why the importance of syndrome differentiation must be emphasized—using the wrong approach will be counterproductive. Therefore, when facing "dry eyes after staying up late," the most important thing is not to rush to find some "eye-protection trick," but first to identify your own constitutional tendency.
Shared Care Principles for Dry Eyes After Staying Up Late
Setting aside the differences among specific patterns, one thing that all people with dry eyes after staying up late should take seriously is giving the eyes regular "rest periods." During continuous eye use, take a moment every so often to look up and gaze into the distance, letting your eyes move beyond the nearby screen to rest on trees in the distance. This is not a mystical act; it allows the ciliary muscles and extraocular muscles to relax alternately. From a TCM perspective, it is also an opportunity for qi and blood in the eyes to resume their flow.
The TCM classic Suwen · Chapter Twenty-Three on the Manifestation of Qi states, "Prolonged gazing damages blood"—staring at screens or pages for extended periods continuously consumes Liver blood. Staying up late combined with prolonged gazing pushes the depletion of Liver blood to its limit. Therefore, beyond being able to see and see clearly, you must also set "eye-use boundaries" for yourself: do not work late into the night in dim lighting; adjust screen brightness to a comfortable level—neither too high nor too low; and in the half hour before bed, try to keep your eyes away from glowing screens, quietly closing them for a while to rest. Closing the eyes is not merely rest; it is an important opportunity for the spirit to draw inward and for the essential qi of the five viscera to ascend and nourish the eyes.
In terms of diet, regardless of pattern, attention should be paid to regular meals and balanced nutrition. Hydration is best taken in small, frequent amounts—do not wait until you are thirsty to remember to drink water. The impact of emotions on the eyes is also often overlooked—anger harms the Liver, and excessive worry harms the Spleen. Emotional fluctuations directly affect visceral qi movement, which in turn indirectly affects the nourishment of the eyes. In terms of daily routine, it may be helpful to regard sleep as a "recharging" process. Falling asleep before the Zi hour greatly benefits the maintenance of Liver blood. Regarding exercise and guidance, it is recommended to exercise during the daytime, with the goal of light perspiration only—profuse sweating is not conducive to the containment and gathering of qi and blood. Because individual differences are significant when it comes to overall care plans and their proportions, the safer approach is to bring your own observation records to a formal medical institution and seek systematic syndrome identification and recommendations from a licensed TCM practitioner, rather than self-diagnosing based on this article alone.
Dry, Sore Eyes: Your Body Is Keeping a Ledger for You
Have you ever considered that dry eyes are perhaps not merely a matter of "insufficient water"? They may be your body's way of telling you: liver blood needs to be repaid, the Spleen and Stomach need repair, and emotions need to be unblocked. Every time you stay up late, your body records that debt for you, and then one morning, in the form of dryness, soreness, and photophobia, it gently but firmly reminds you—it's time to stop.
The next morning after staying up late, if your eyes feel dry and gritty again, before reaching for the eye drops, take a moment to tune in: Are your lower back and knees sore or weak? Is your mood irritable? Is your abdomen bloated? These seemingly unrelated details are precisely a handwritten letter from your body. Read it, and you will truly understand those dry eyes.
References:
1. The original text of Huangdi Neijing · Lingshu · Discussion on Great Confusion can be consulted in the TCM ancient literature database: https://tcmdata.cintcm.com/
2. The original text of Huangdi Neijing · Suwen · Chapter Ten on the Generation of the Five Viscera can be consulted in the TCM ancient literature database: https://tcmdata.cintcm.com/
3. Official website of the National Administration of Traditional Chinese Medicine (information related to TCM health preservation and health education): https://www.satcm.gov.cn/
Water failing to nourish wood, clear yang failing to rise, Liver qi stagnation transforming into fire, the Zi hour returning to the Liver, and the essence of the five viscera pouring upward into the eyes
Dry eyes after staying up late are not simply a matter of ocular surface dehydration. Some individuals have Liver-Kidney yin deficiency with water failing to nourish wood; others have Liver qi stagnation transforming into fire, scorching fluids and injuring the eyes; still others have Spleen deficiency with weak qi and clear yang failing to rise. The same symptom of dryness can have roots in different viscera. This article begins with the Huangdi Neijing teaching that "the essential qi of the five viscera and six bowels all ascend to pour into the eyes," analyzes the pathogenic differences among three common patterns, and helps you read the signals your body is sending—so you can find the care approach that truly suits you.
Related Q&A
Dryness is only the surface—what causes the "eye" condition?
In TCM, dryness is considered only a surface manifestation. The "eye" condition must be approached through holistic syndrome differentiation, using the four diagnostic methods (inspection, auscultation-olfaction, inquiry, and palpation) in combination with the individual's constitutional characteristics for a comprehensive judgment. It cannot be reduced to a single explanation. The specific treatment direction should be determined by a licensed TCM practitioner through in-person consultation.
How long is the treatment cycle for Pattern One?
The treatment cycle varies from person to person and is related to factors such as the individual's constitutional foundation and adherence to lifestyle recommendations. TCM emphasizes gradual, step-by-step progress. The specific cycle should be assessed by a licensed TCM practitioner after an in-person consultation based on the individual's condition. This material does not provide a specific cycle commitment.
What should be noted in daily care for Pattern Two?
For daily care, it is recommended to maintain a regular sleep schedule, a balanced diet, moderate exercise, and emotional stability. Specific precautions should be adjusted flexibly according to individual constitution and seasonal changes. You may consult a licensed TCM practitioner for targeted advice.