GB37 Guangming (Bright Light)

Location

5 thumb widths directly above the tip of the external malleolus on the anterior border of the fibula.

Categories

• Luo-Connecting point of the Gallbladder meridian

The classical groups this point belongs to, from Deadman, Al-Khafaji & Baker, A Manual of Acupuncture.

Indications

Conditions for which GB37 is listed as indicated. An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.

TCM actions

What classical sources say GB37 does in the terms of Chinese medicine theory. These describe the point, not a condition.

Protocols using GB37

The 50 best-sourced of 74, ranked by strength of evidence. The count above is the full figure.

• Vision Loss, Optic Nerve Contusion – LI04, LI11, BL01, BL02, BL18, GB20, GB37, LV03, GV20 (doi:10.1016/s0254-6272(08)60002-3 ↗)
• Vision Blurred, Optic Nerve Contusion – LI04, LI11, ST36, BL01, BL02, BL18, GB20, GB37, LV03, GV20 (doi:10.1016/s0254-6272(08)60002-3 ↗)
• Dysgeusia, Headache Parietal, Dysphagia, Headache Unilateral, Dysarthria, Palsy Cranial Nerve Glossopharyngeal, Palsy Cranial Nerve Vagus, Palsy Cranial Nerve Hypoglossal, Tongue Weakness – PC06, TB05, GB37, LV05, CV17, CV23 (doi:10.3831/KPI.2012.15.016 ↗)
• Blurred Vision, Asthenopia, Dry Eye, Foreign Body Sensation Eye, Burning Eye, Dryness Ocular – LI04, ST02, SP06, BL01, BL02, TB23, GB14, GB20, GB37, LV03 (doi:10.1155/2015/492150 ↗)
• Photophobia, Blurred Vision, Red Eyes, Eye Pain, Dryness Eye, Eye Fatigue, Itching Eye, Tearing – GB37 (doi:10.1155/2015/641792 ↗)
• Cough, Headache, Common Cold, Sore Throat, Nasal Discharge, Nasal Obstruction, Sneezing, Malaise, Chilliness – LU06, LU07, LI06, LI07, ST40, ST42, SP02, SP08, HT05, HT07, SI06, BL58, BL63, KD03, KD04, PC06, PC07, TB05, TB07, GB37, LV03 (doi:10.1016/s0254-6272(17)30006-7 ↗)
• Eye Dryness, Tear Film Instability, Eye Discomfort, Dry Eye Disease – LI04, ST02, ST36, BL02, TB23, GB37 (doi:10.1089/acm.2020.0524 ↗)
• Stroke Hemiplegia, Paralysis Limb, Gait Disturbance, Balance Dysfunction – ST36, ST44, SP06, GB30, GB31, GB37, GB39, GB40 (doi:10.1097/MD.0000000000037784 ↗)
• Amblyopia Anisometropic, Vision Reduced – LI04, BL02, BL04, BL06, BL09, GB16, GB37, GV17, GV20 (doi:10.1097/MD.0000000000046551 ↗)
• Diplopia, Paralysis Abducens Nerve, Strabismus – TB03, TB23, GB01, GB20, GB37, GB44 (doi:10.13702/j.1000-0607.20240917 ↗)
• Red Eyes, Dryness Eye, Visual Disturbance, Foreign Body Sensation Eye, Eye Fatigue, Dry Eye Disease, Burning Sensation Eye – LI04, ST36, SP06, BL01, BL02, KD03, GB01, GB20, GB37, LV03 (doi:10.3389/fmed.2026.1738110 ↗)
• Hypertension, Blood Pressure Elevated – LI06, LI07, GB37, GB38, GB39 (doi:10.1089/acu.2015.1106 ↗)
• Myopia, Visual Acuity Reduced, Contrast Sensitivity Reduced – GB37 (doi:10.3389/fnins.2024.1492529 ↗)
• Vision Loss, Visual Impairment, Optic Neuritis – LI04, ST01, ST36, SP06, BL01, BL02, GB20, GB37 (doi:10.19917/j.cnki.1005-0779.024094 ↗)
• Glaucoma, Strabismus, Optic Neuritis, Amblyopia, Visual Cortex Hypoactivity – LI14, GB20, GB34, GB37, LV03 (doi:10.13444/j.cnki.zgzyykzz.2025.11.016 ↗)
• Tinnitus, Hearing Loss Sudden – SI17, SI19, BL23, KD03, TB03, TB05, TB17, TB21, GB02, GB20, GB37, LV03, GV20 (doi:10.27282/d.cnki.gsdzu.2020.000863 ↗)
• Paralysis Facial, Eye Symptoms Facial Palsy Sequelae – LI04, GB37 (doi:10.16295/j.cnki.0257-358x.2025.08.012 ↗)
• Eye Pain, Vision Blurred, Eye Dryness, Eye Fatigue, Vision Distorted, Scotoma Central, Macular Degeneration Laser-induced – LI04, ST02, ST07, ST36, BL02, TB05, TB23, GB14, GB20, GB37, LV03, GV20, GV24, XH03 (doi:10.1097/MD.0000000000034735 ↗)
• Vision Blurred, Macular Edema, Retinal Disease – ST02, SI06, BL01, BL02, GB14, GB34, GB37, GB40 (doi:10.3389/fmed.2026.1717145 ↗)
• Diplopia, Paralysis Abducens Nerve, Strabismus, Abducens Nerve Palsy – TB03, TB23, GB01, GB20, GB37, GB44, XH05, XH07 (doi:10.13702/j.1000-0607.20240917 ↗)
• Amblyopia Anisometropic, Visual Acuity Reduced, Amblyopia, Vision Impairment – BL01, BL02, GB20, GB37 (doi:10.13703/j.0255-2930.20230313-0003 ↗)
• Amblyopia Anisometropic, Vision Reduced, Amblyopia – LI04, BL02, BL04, BL06, BL09, GB16, GB37, GV17, GV20, XH05 (doi:10.1097/MD.0000000000046551 ↗)
• Vision Blurred, Diplopia, Ptosis Eyelid, Oculomotor Nerve Palsy, Oculomotor Nerve Palsy – LU07, LI04, ST36, SP04, SI03, BL02, BL62, KD06, PC06, TB05, GB14, GB20, GB37, GB41 (doi:10.13703/j.0255-2930.20240917-k0002 ↗)
• Amblyopia – ST36, BL18, BL20, BL23, GB37 (doi:10.13703/j.0255-2930.20200612-0003 ↗)
• Dryness Eyes, Dry Eye Syndrome – HT07, KD03, GB01, GB13, GB20, GB37, LV03, GV24, XH04 (doi:10.13703/j.0255-2930.20201108-k0005 ↗)
• Dry Eye, Dry Eye Disease – LI04, ST02, ST36, BL02, TB23, GB37 (doi:10.1089/acm.2020.0524 ↗)
• Vision Blurred, Vision Loss, Macular Degeneration – LI04, ST02, ST07, ST36, BL02, TB05, TB23, GB14, GB20, GB37, LV03, GV20, GV24, XH03, XH04, XH05 (doi:10.1097/MD.0000000000034735 ↗)
• Balance Impaired, Gait Disturbance, Hemiplegia Post-stroke – ST36, ST44, SP06, GB30, GB31, GB37, GB39, GB40 (doi:10.1097/MD.0000000000037784 ↗)
• Dry Eye Syndrome – LI04, ST01, ST36, SP06, BL01, BL02, GB20, GB37 (doi:10.13703/j.0255-2930.2019.09.008 ↗)
• Amblyopia Anisometropic, Visual Acuity Reduced, Amblyopia – LI04, BL02, BL04, BL06, BL09, GB16, GB37, GV17, GV20, XH05 (doi:10.1097/MD.0000000000046551 ↗)
• Macular Edema, Visual Acuity Reduced – ST02, SI06, BL01, BL02, GB14, GB34, GB37, GB40 (doi:10.3389/fmed.2026.1717145 ↗)
• Diplopia – ST02, BL02, GB01, GB37, XH05 (doi:10.7453/gahmj.2014.069 ↗)
• Dysphagia Post-stroke – SI17, PC07, TB05, TB16, GB37, LV03 (doi:10.5114/aoms/204368 ↗)
• Dry Eye – GB37, GB42 (doi:10.13703/j.0255-2930.2017.10.011 ↗)
• Myopia Juvenile – LI04, BL02, GB20, GB37, XH05 (doi:10.13703/j.0255-2930.2018.02.010 ↗)
• Amblyopia Anisometropic – BL01, BL02, GB20, GB37 (doi:10.18240/ijo.2024.02.17 ↗)
• Optic Neuropathy Ischemic – LI04, ST02, SP06, BL01, BL02, KD03, GB37, LV03, XH04, XH05 (doi:10.32629/jcmr.v7i2.5281 ↗)
• Glaucoma, Intraocular Pressure Elevated – LI04, GB37, LV03 (doi:10.1159/000074780 ↗)
• Macular Degeneration – ST02, ST40, BL01, BL02, BL18, BL23, GB01, GB14, GB20, GB37, XH05 (pubmed.ncbi.nlm.nih.gov ↗)
• Procedural Pain, Diabetic Retinopathy – GB37 (doi:10.1089/acm.2010.0082 ↗)
• Ischemic Stroke – LI04, LI11, LI15, GB30, GB34, GB37 (pubmed.ncbi.nlm.nih.gov ↗)
• Myopia Juvenile – ST36, SP06, BL02, TB23, GB20, GB37, XH04, XH05 (pubmed.ncbi.nlm.nih.gov ↗)
• Flammer Syndrome – LI04, ST01, SP06, BL01, BL18, BL23, TB05, GB20, GB37, LV03, CV06, GV20, CVC01, CVC10, CYC08, CYC11, EL10 (doi:10.1007/s13167-017-0096-4 ↗)
• Nystagmus – LI04, ST01, ST36, SP06, HT07, SI03, BL01, BL18, BL20, BL23, GB20, GB34, GB37, LV03, CV06, GV20, XH03, XH07, AT10, CYC08, EL10, HCS02 (doi:10.3390/medicines4020033 ↗)
• Retinitis Pigmentosa – LI11, ST02, SP10, SI06, BL18, BL23, GB20, GB37, LV03, GV24, XH03, XH04 (doi:10.1016/j.joco.2017.07.004 ↗)
• Amblyopia – ST01, BL01, BL02, BL18, BL23, GB01, GB20, GB37, XH04, XH05 (doi:10.13703/j.0255-2930.2017.11.012 ↗)
• Cerebral Palsy Spastic, Spasticity Lower Limb – ST32, ST36, GB34, GB37, GB39 (doi:10.13703/j.0255-2930.2018.06.006 ↗)
• Myopia Juvenile – ST05, GB37 (pubmed.ncbi.nlm.nih.gov ↗)
• Blood Deficiency, Liver Deficiency, Blood Deficiency, Liver Deficiency – BL18, GB37 (Yang Yong-Xuan, clinical point-selection notes)
• Liver Blood Stagnation, Liver Blood Stagnation – ST29, SP10, BL18, BL32, KD05, GB37 (Yang Yong-Xuan, clinical point-selection notes)

Most often selected alongside GB37

How many sourced protocols in the index pair each point with GB37. Corpus frequency, not a combination to use.

• GB20Wind Pool36 protocols
• BL02Gathered Bamboo32 protocols
• BL01Bright Eyes / Eye Point31 protocols
• LV03Great Surge29 protocols
• LI04Junction Valley28 protocols
• ST36Leg Three Miles20 protocols
• SP06Three Yin Intersection17 protocols
• ST02Four Direction Brightness16 protocols
• XH05Supreme Yang (Sun)15 protocols
• BL18Liver Shu Point14 protocols
• TB23Silken Bamboo Hollow14 protocols
• GV20100 Convergences13 protocols

Other points on the Gallbladder Meridian