Post lasik myopia, convergent squint.

Done epilasik 4 yrs back  after that I don't know xactly entire  power correction done or not. Before that only I have squint ( not significant ,very mild)due to misuse of contact lenses having different power in 2 eyes, mistakenly wear wrong for 2 months( 5 for 1 eye 3 to 4 for other eye). But wen cosulted doctor they told nothing   like that. Its just psychological feeling. Very little it present. Its absolutely ok.   1 yr back my rt eye power 1.5 left eye normal. And convergent squint.  Occasionally  iam using contact   lense for my rt eye ,sometimes speds . But not using them continuously.wat  options r left for me now. Can I do lasik again . I don't  want to wear glasses. Wat about this squint.  Wen I constulted   lasik done doctor. He told nothing like this .entire power may/ may not be corrected by lasik. And u  r normal now. Plz give ur valuable suggestions.  Do I need any surgery exercises for squint? And this myopia?. And I am  a post MBBS student.Kindly give ur suggestions.