“Yu” originally means jade, but here refers to the lung. “Zhen” means pillow, here referring to the occipital bone. The point is mainly used in the treatment of nasal obstruction, the nose being the orifice of the lung. Hence the name Yuzhen (Jade Pillow).
1.3 cun lateral to Naohu (GV17), on the lateral side of the superior border of the external occipital protuberance.
Pain of the head and neck area.
Blurring of vision.