Can I get a Blephex treatment one week after my LASIK surgery?

You have to get an evaluation as soon as possible because the diagnostic can be variable, but it can be nevus (freckle of the eye) or something of concern.

That's why it's only approved in third or at best second world countriesjust use colored contacts would be my advice

You have the correct order. Keeping the eyes aligned together (strait) is easier if there isn't much prescription and the both eyes see to the same acuity. It's tougher if the lazy eye does see as well with the best glasses or contacts or LASIK and can only see say 20/60 while the good one sees ...