NEED ADVICE FOR SQUINT PROBLRM. It true?

I am 26 and my already operated for lasik two years ago. I had -4 -4 15° OD and -6 -2 90° OS before lasik. Next day of lasik, I was 6/6 in both with +0.5 in OD and OS. Now, after two years, I have -2 cylindrical OD and 1 spherical OS. I operated for squint also in year 2000, but now it is visible again in right eye. I took appointment for squint problem and they said my fusion remains for almost 80% a day so they can't operate for this squint, and even if they have to operate, they will operate on my left eye to correct right eye squint as it's muscle may already be broken during my 1st surgery. My questions are 1. Why my power came back even after LASIK? I was operated at AIIMS Delhi. Doctors said that I had high chances of regression due to very high myopia before lasik and that since I have squint in right eye, this power may further increase. Is it true? 2. Should I go for squint surgery even if doctors are not accepting me as a suitable patient because my squint is not permanent