What is the Endovenous Laser Treatment (EVLT) of varicose vein?
In EVLT, laser energy is delivered through the fibre and into the vein, causing the vein wall to close. The laser fibre converts light energy to heat. The heat closes the inner lining of the diseased vein. Eventually the vein shrinks and disappears over a period of time (varying from 6 weeks to 6 months).