How long does it take to see the full result after Nd-Yag laser treatment of under eye veins?

Most vascular lasers will show results immediately, but this depends on the application and the device. Be sure to see an expert who is a physician and specializes in facial aesthetic procedures as laser treatments, especially around the eyes, are not without risk.All the best,

Excellent question.  This depends on the extent and size of the veins you are having treated.  In my experience using an ND:YAG laser to treat facial veins, about 2 weeks for full results.  You may need 2 to 3 treatments, however, depending on number, size, and depth of the vessels.  It is also a very good idea to take before and after pictures.