Differences between compression stockings and Anti-Embolism stockings.

Compression stockings have a defined pressure gradient. The compression is at its strongest from the ankle and heel then reduces further up the calf and thigh. This means compression stockings are medically effective and are only sold by specialist outlets. Compression support stockings are generally worn for the management of venous and lymphatic conditions, as they help to return blood from the lower leg area back to the heart.
Compression Stockings constrict the full diameter of the vein, this allows for the venous valves to close again, hence reducing the amount of blood flowing back down into the legs.

Anti-Embolism stockings are similar, however the pressure is concentrated at the foot ankle, and does not extend up the leg like conventional compression stockings. The main use for Anti-Embolism stockings is for people who are bed or chair bound, either following surgery or through more permanent incapacity and are not able to stimulate natural circulation through movement.