Laser for Under Eye Veins, Worried About Blood Clot to Brain?

Hi , I just had laser done under both eyes for a few small red veins under left eye and tiny blue vein under left , and thin blue vein under right eye toward outside of eye above and along top cheek,I went on this site after and read it can cause blood clot to brain! and eye blindness from clot, now I'm freaking out I will get blood clot in brain, what is the chances of this and how long after treatment would you see the signs of this happening, what should I look out for?can I fly ( travel).