Vision related doubt. The recovery time?

Exotropia in my right was discovered when I was 5 years old. But it is not congenital. My eyes were perfectly aligned before.  I was exposed to Video games and mobiles which probably caused that. Doctors advised me office based vision therapy for a year, and later I was operated for exotropia. But after 6 years, it recurred again. Now 3 months ago, I was operated for LASIK. Now for exotropia, pencil push-ups are suggested. I can see 6/6(P) with affected eye. I want to know can a person having minor exotropia have perfect vision just as in my case? Secondly, I want to correct the alignment, but this squint isn't constant squint. It is intermittent, 40% of the time it occurs, especially when I am tired. What should I do? Should I go for surgery or wait for my LASIK to heal? Or only exercises will help? What is the success rate of squint surgery? Will it occurr again after surgery ? How much  is the recovery time?  Sq angle 15° right eye only. Please help.