GB 37 — Guāng Míng (光明) — Bright Light
GB 37 (Guang Ming, “Bright Light”) is the Luo-connecting point of the Gallbladder channel. The name reflects its principal action of brightening the eyes — it is one of the most important distal points for visual disorders, particularly those involving Liver-Gallbladder pathology.
On this page
1. About GB 37 (Guang Ming)
GB 37 — Guāng Míng — is the Luo-connecting point of the Gallbladder channel. Through its Luo connection it links to the Liver channel, which “opens to the eyes” in TCM physiology — making this point particularly powerful for eye disorders.
2. GB 37 location
5 cun above the tip of the lateral malleolus, on the anterior border of the fibula.
3. Actions
- Benefits the eyes
- Spreads Liver Qi and dispels Wind
- Unblocks the channel and relieves leg pain
4. Indications
- Blurred vision, decreased visual acuity
- Night blindness
- Eye pain, dry eye
- Optic atrophy (specialist use)
- Migraine and headache with eye involvement
- Lateral leg pain
- Breast distension (Luo connection)
5. Needling
Perpendicular insertion 1.0–1.5 cun.
6. Clinical notes
For eye disorders, GB 37 is one of the principal distal points, typically combined with local eye points (BL 1, BL 2, Yu Yao, Tai Yang) and BL 18 (Liver back-shu). The Luo-connecting function links it to the Liver, harmonising the Liver-Gallbladder pair which jointly governs the eyes.
7. Treatment at my clinic
I use GB 37 within tailored acupuncture prescriptions for visual disorders, dry eye and ocular migraine. I see patients at my clinic in Wokingham, Berkshire.
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