Chengqi

What is ST1?

ST1 (Chengqi) is the first point of the Stomach channel, sitting on the bone just below the eye, directly under the pupil.

Its name is usually translated as "Container of Tears", which tells you how it has been used for centuries. In classical Chinese medicine it is an eye point. Texts list it for red, sore or watery eyes, twitching lids, blurry or night vision problems, and one-sided facial weakness.

Every acupuncture curriculum teaches ST1, so its standing in the tradition is about as high as it gets. That standing is not evidence that pressing it changes anything, and it is not evidence that pressing it is safe. Those are separate questions, and this page keeps them separate. You will not see that disclaimer repeated in every section below, so take it as applying throughout.

The honest verdict on the evidence: there is essentially no good human research on ST1 on its own, and none at all on finger pressure at ST1. The point appears inside multi-point needling protocols in small trials for dry eye and childhood short-sightedness, which cannot tell us what ST1 contributed.

ST1 also deserves more caution than most points, for a simple anatomical reason. It sits on the thin rim of the eye socket, a few millimetres from the eyeball itself. The skin there is the thinnest on the body and bruises readily. Professionals treat this point as a high-risk needling site and many will not needle it at all.

For a self-help reader that translates into one rule: your fingertip stays on bone. Everything on this page is gentle, self-applied finger pressure on the bony ridge under the eye. Nothing here involves needles, heat or anything that breaks the skin. If your eye is painful, red, injured or your vision has changed, this point is not the answer — an eye examination is.

Where is ST1 and how do you find it?

ST1 sits on the bony rim just under the eye, directly below the centre of the pupil when you look straight ahead.

• Sit facing a mirror. Keep your head level and your eyes looking straight forward, not up or down. The pupil has to be in its neutral position for the landmark to work.
• Find the bony ridge under your eye. Run a fingertip gently across your cheek, upward, until you feel the firm edge of your eye socket. That ridge is the infraorbital margin (the lower rim of the bone around the eye).
• Drop a line from the pupil. Imagine a vertical line falling straight down from the centre of your pupil. Where that line crosses the bony ridge is the ST1 area.
• Check the distance. Classically ST1 is about 0.7 cun below the pupil, which on most adults is roughly 1.5 to 2 cm, or a little over half a thumb-width, below the lower lid margin.
• Confirm by feel. You should feel hard bone under the pad of your finger, with a slight soft hollow just above it. If your finger feels the squashy curve of the eyeball, you are too high.

Some texts place ST1 in the soft tissue between the eyeball and the bone rim. That version matters for practitioners using needles; it is not a target for a fingertip. For self-applied pressure, work the bone itself and the skin lying over it.

A useful reference point nearby is the small notch or dip you can feel on the bony rim, usually in line with the pupil. Pressing there often feels tender in a dull, spreading way, because a nerve passes through. That tenderness is normal anatomy, not proof you have found a magic spot.

If you wear glasses, the nose pads often rest higher and inward of ST1. Do not use the pads as your guide.

How do you apply pressure to ST1?

1. Clean up first. Wash your hands with soap and dry them. Check that your fingernails are short and smooth, because you are working beside the eye.
2. Take contact lenses out. Never press near the eye with lenses in place. Remove eye make-up too, so you are not pushing product toward the lid margin.
3. Settle your head. Sit upright, rest your elbows on a table, and look straight ahead or let your eyes close gently.
4. Place the finger pad on bone. Use the flat pad of your index or middle finger on the bony rim below the pupil. Your fingertip should never sit on the eyeball.
5. Press lightly, into the bone. Aim the pressure downward and slightly outward against the bone, not inward toward the eye socket. Light means light: a 2 or 3 out of 10, enough to feel contact and mild dullness.
6. Hold, do not dig. Hold steady for 10 to 20 seconds, then release. Small, slow circles on the bone are fine. Sharp poking, nail pressure and fast rubbing are not.
7. Repeat a few rounds. Three to five holds per side is plenty, taking about a minute in total. Breathe slowly and keep your jaw loose.
8. Finish with a rest. Close your eyes and let them rest for 30 seconds. Blink a few times before going back to a screen.

Once or twice a day is reasonable for a short screen-break routine. There is no evidence that longer or harder sessions do more, and the thin skin here bruises easily.

Stop immediately if you get sharp pain, if your vision blurs or doubles, if you see flashes, floaters or a dark patch, if the eye waters uncontrollably, or if the skin bruises. Stop also if you simply find it unpleasant. Nothing about this point requires you to push through discomfort.

What is ST1 traditionally used for?

• Red, sore or irritated eyes. This is the classical headline use for ST1, including gritty, burning eyes and conjunctivitis-type redness. Human evidence for finger pressure here is absent, and a red painful eye needs a diagnosis, not self-massage.
• Excessive tearing or watery eyes. The point's name, "Container of Tears", comes from this use. No controlled human trial has tested ST1 for watering eyes, which in adults often has a plumbing cause such as a blocked tear duct.
• Tired eyes and screen strain. A modern, popular use rather than an old one. Any benefit is most plausibly from the pause, the blinking and the gentle touch, which is still a real comfort, just not a point-specific effect.
• Twitching eyelid. Tradition uses ST1 for lid spasm. Most common eyelid twitching settles by itself with sleep and less caffeine, so improvement after pressing is hard to attribute to the point.
• Blurred vision and night blindness. Classical texts list these. They are not conditions to manage at home; blurred vision and poor night vision need an eye examination, and nothing on this page will correct a refractive error.
• Facial paralysis and facial pain. ST1 appears in traditional point combinations for one-sided facial weakness, such as after Bell's palsy. Trials of acupuncture for facial palsy are small, mixed and used needles at many points, so they say nothing about pressing ST1.
• Dry eye. Periocular points including ST1 turn up in small acupuncture studies for dry eye. Results are modest and unblinded, and the protocols are multi-point needling, not self-applied pressure.

In short: the traditional list is long and specific, and the human evidence behind it is thin to non-existent. Treat ST1 as a comfort habit around eye strain, and treat any genuine eye symptom as a reason to be examined.

What might regular use of ST1 help prevent?

• Build-up of screen-related eye strain. The most defensible claim is indirect. A short ST1 routine forces you to stop staring, blink properly and look away, and regular breaks are genuinely the standard advice for screen strain. The credit belongs to the break, not to the point.
• Short-sightedness in children (claimed, not shown). Eye-area acupressure has been taught in Chinese schools for decades, partly on the idea that it slows the progression of myopia. The research is mostly low quality, inconsistent and hard to blind. There is no reliable evidence that pressing ST1 prevents or slows short-sightedness.
• Dry eye flare-ups. Tradition points this way, and small needling studies hint at symptom relief, but prevention is a different and much higher bar. No trial has tested whether routine finger pressure at ST1 stops dry eye episodes happening.
• Nothing structural. Pressing ST1 will not prevent cataracts, glaucoma, macular degeneration or any other eye disease. These are detected by eye examination and managed medically, often with no symptoms until late.

The honest summary is that ST1 has no proven preventive effect on anything. If you enjoy the routine, use it as a cue to rest your eyes, and keep the things that actually have evidence: regular eye tests, daylight and outdoor time for children, good lighting, and treatment for any diagnosed condition.

One practical risk worth naming. People sometimes adopt an eye-point routine and then postpone an overdue eye test, because they feel they are doing something. That swap is the real harm here. A daily minute at ST1 is not a substitute for being checked by an optometrist or ophthalmologist, especially for children, people over 40, and anyone with diabetes or a family history of glaucoma.

Are there tips for using ST1 effectively?

• Bone, always bone. Make "can I feel hard bone under my finger pad?" your check before every hold. If the answer is no, slide down a few millimetres.
• Use the flat pad, not the tip. A broad, soft contact spreads the force and is much less likely to bruise the thin skin under the eye.
• Go lighter than you think. Around the eye, light pressure is the correct dose. Firmer is not better here, and there is no evidence that intensity changes anything.
• Warm your hands first. Rub your palms together for a few seconds. Warm hands on cold cheeks feel better and encourage you to relax your face.
• Pair it with blinking. Do ten slow, full blinks after your holds. Full blinks spread the tear film and are one of the few screen-strain measures with a sensible rationale.
• Attach it to a break you already take. Use the kettle boiling or the end of a meeting as the trigger. Consistency comes from the cue, not from willpower.
• Work both sides evenly. Use both index fingers at once, or do one side then the other for the same count. Symmetry keeps you from leaning hard into one eye.
• Keep sessions short. A minute is enough. Long sessions near the eye add bruising risk without adding any known benefit.
• Try the bony rim outward instead. If directly under the pupil feels too close to the eye, moving your finger a centimetre toward the outer corner, still on bone, is gentler and still restful.
• Log what happens. Note your eye comfort before and after for a fortnight. If you see no change, drop it rather than pressing harder.
• Mind the make-up. Apply after, not before, and avoid pushing cream or concealer toward the lid margin.

What do people get wrong with ST1?

• Pressing the eyeball. The single most important error. Fingers drift up off the bony rim onto the soft globe, which can raise pressure inside the eye and is never part of this routine.
• Using the fingernail. A nail concentrates force onto a tiny patch of the thinnest skin on the body. Use the flat pad only, and keep nails short.
• Pressing too hard. People assume strong pressure means a stronger effect. Under the eye, it mostly means a bruise that looks like a black eye for a week.
• Expecting a cure. Hoping ST1 will fix short-sightedness, cataracts, glaucoma or a squint. It will not, and that expectation delays the eye care that would actually help.
• Doing it with contacts in or dirty hands. This is an infection and corneal-scratch risk, not a theoretical one. Lenses out, hands washed, every time.
• Confusing ST1 with its neighbours. People often land on BL1 at the inner corner of the eye or Yintang between the brows. ST1 is specifically on the lower bony rim, in line with the pupil.
• Treating a red, painful eye at home. Pain, redness with light sensitivity, discharge or sudden visual change are examination symptoms. Massaging them is a delay, not a treatment.
• Pressing over a stye or broken skin. Rubbing an infected lid can spread it. Wait until the skin is intact and settled.
• Ignoring easy bruising. If you take blood thinners or bruise readily, firm pressure here will show. Go very light or skip the point.
• Overdoing it in children. Children copy adult pressure and press hard near the eye. Supervise, keep it feather-light, and never make it a substitute for an eye test.

What does the research on ST1 actually say?

There is essentially no useful human research on ST1 by itself, and none that tests self-applied finger pressure at this point. That is the honest starting position, and it is the same answer for most single acupoints.

What exists is indirect. ST1 is sometimes included among several points in small acupuncture trials for dry eye disease, for childhood short-sightedness, and for facial palsy. Those studies used needling by practitioners, treated several points at once, were usually small, and were rarely blinded well. When a multi-point protocol produces a modest change in symptom scores, there is no way to work out what ST1 contributed, or whether a fingertip would do the same thing.

Eye-area acupressure has also been studied as part of the school eye exercises used in China for decades, generally with myopia prevention in mind. That body of work is large in volume but weak in quality: differing methods, poor control groups, short follow-up and inconsistent results. Reviews have repeatedly described the evidence as insufficient to support a preventive effect on short-sightedness.

It is worth stating the contrast, because it shows what real evidence looks like. PC6 and nausea is the clearest case in the whole acupressure literature, with multiple controlled trials in pregnancy sickness, motion sickness and after surgery pointing in the same direction. ST1 has nothing remotely comparable.

What this means for you is practical. Any relief you feel after a minute at ST1 is plausible but unexplained, and could easily come from resting your eyes, blinking properly, slowing your breathing, or simply the comfort of touch. None of that is worthless. It is just not a specific, proven effect of this point, and it should not be the reason you skip an eye examination.

No trial has shown harm from gentle pressure on the bone below the eye. The known risks here are mechanical and avoidable: bruising, scratched cornea and pressing on the globe.