SQUINT and LASIK query. The next day?

I went for eye checkup before having lasik surgery. Doctor detected 15° RDS squint in my right eye. They declared me FIT for Lasik and told me to have a squint evaluation test first after that they will give me lasik surgery date. They told me that I will have to have Lasik first then they will operate for Squint because squint angle changes after Lasik. Based on this info, kindly answer following questions 1. What do they check in squint evaluation? ( Detailed procedure) 2. Will squint surgery results in appearance  of the eye power?   ( Because after lasik I will be operated for Squint, if eye power again appears then lasik would be a waste ). 3. After lasik do the squint angle increases drastically or minimally? Or the squint angle may decrease too? ( As the doctor told angle and other parameters of squint will change after lasik ). 4. After how much time will they operate me for Squint after lasik? 5. Recovery time after squint surgery? Can I use computer the next day? Thanks !