Gall Bladder 37 (GB 37) Guang Ming — Bright Light

This is the Luo-Connecting point of the Gall Bladder channel, connecting with the Liver. It is the principal distal point for the eyes and benefits the lateral leg.

Gall Bladder 37 (GB 37) Guang Ming 光明 — Bright Light

Location

On the lateral lower leg, 5 cun proximal to the prominence of the lateral malleolus, on the anterior border of the fibula.

Anatomy

On the anterior border of the fibula, on peroneus longus and brevis; the anterior tibial artery; the superficial peroneal nerve.

Actions & Functions

  • Benefits the eyes (the chief distal point for the eyes)
  • Spreads Liver qi and benefits the lateral leg

Indications

Eye disorders of all kinds (blurred vision, night blindness, painful or itchy eyes), breast distension, and pain and weakness of the leg.

Needling

0.5-0.8 cun, perpendicular insertion.

Moxibustion Suitability

Suitable for moxibustion.

Point Combinations

With BL-1, GB-20 and LV-3 for eye disorders.

Classical Text References

The Luo-Connecting point of the Gall Bladder; classically the chief distal point for the eyes.

Cautions & Contraindications

None specific.

Latest Research

Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

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PubMed research

Acupuncture Shows Sustained Benefits for Chronic Daily Headache Prevention in Adults, Meta-Analysis Finds

Research summary (Acupuncture): Utility of Acupuncture Therapy for Adult Chronic Daily Headache Prophylaxis: A Systematic Review and Meta-Analysis. - Medical science monitor : international medical journal of experimental and clinical research, 2026.