<unk>  is a type of surgery used to treat varicose veins that occur as a result of long term venous insufficiency. The term is a French acronym for Conservatrice Hémodynamique de l'Insuffisance Veineuse en Ambulatoire (ambulatory conservative hemodynamic treatment venous insufficiency). The method is based on the assumption that the symptoms of varicose veins are mainly the expression of an hemodynamic circulatory disorder, induced by various venous system malfunctions.<unk>  attempts to improve symptoms and signs without destroying the veins. __TOC__
CHIVA method
NDR Method
Shettles method
Kick chart
Tessys method
LogMAR chart
Monocular estimate method
Consensus error grid