Smoking marijuana after Lasik
Smoking marijuana after Lasik will not affect your healing or any other aspect. You have nothing to worry about.
Smoking marijuana at this point should not affect your healing process. The smoke may make your eyes dry so I would recommend that you make sure to lubricate your eyes with preservative-free artificial tears.
There aren't any peer-reviewed studies on optimal timing, choice of or frequency of street drugs after LASIK surgery. We know that certain compounds in the smoke of street drugs can be directly damaging to the corneal surface (specifically crack cocaine) but corneal toxicity is not a widely known side effect of marijuana. There are other concerns with drug use after ocular surgery including safety and lack of awareness to follow normal precautions (no eye rubbing, for example).