Sorry not Pattaya but in BKK. Praram 9 Hospital Lasik Centre, went as recommended by a friend.
Fantastic service and a through exam that is free, They told me my eyes are not bad enough for surgery and recommended a monovision contact lens.
Not saying this is for you but for the service they provide (free) I was impressed at their honesty.... I went there looking for Lasik and they could have easily taken advantage.
https://www.praram9.com/en/medical-center/lasik-center/