Acupuncture Point Guangming (GB37)
Location:
Upright sitting or lateral position; on the lateral side of the shank, 5 cun above the tip of lateral malleolus, on the anterior border of fibula.

Function:
Promoting eyesight and dredging the collaterals.

Regional Anatomy:
Skin-subcutaneous tissue-short peroneal muscle-anterior intermuscular septum-long extensor muscle of toes-long extensor muscle of great toe-interossous membrane of leg-posterior tibial muscle.
In the superficial layer, there are the superficial peronral nerve and the anterior tibial artery and vein.

Indications:
Pain in the knee, muscular atrophy, motor impairment and pain of the lower extremities, blurring of vision, ophthalmalgia, night blindness, and distending pain of the breast.

Prescription:
Combined use with JingmingBL1 (Jingming (BL 1)) for treatment of optic neuritis; with YanglingquanGB34 (Acupuncture Single Point Yanglingquan (GB34) He-Sea Point, Influential Point of Tendon) for treatment of gonitis; and with DiwuhuiGB42 (Diwuhui (GB42)) for treatment of
blurring of vision.

Methods:
Insert the needle perpendicularly to 1-1.5 cun depth; needling response: local numbness and distention, radiating downward; moxibustion: using 3-5 moxa-cones, or mild moxibustion for 15 min.