Your Kidneys (or Kidney, in Chinese medicine) are the source of Yin and Yang in your body. When the fire of Yang is burning low or Yin is not nourishing your body, your Kidney must always be addressed. Your Kidney also houses a substance called Essence, which is similar to DNA.
Also known as Duaneâs retraction syndrome, eye retraction syndrome, and Stilling-Turk-Duane syndrome, This rare disorder is caused by a âmiswiringâ of the medial and the lateral rectus muscles (the muscles that move the eyes) in the fetus in utero.
Other causes of narrowing (stenosis) includes 1  : Mass pressing against the artery as is the cases with a neighboring tumor, fluid filled cyst or the pregnant uterus. In pregnancy, the narrowing is temporary and is relieved upon change of position.  Infection causes inflammation and thereby swelling of the arterial wall.