SLT are typically painless (I’ve had 4). You sit in a chair, after being numbed with drops, and your eye is kept open with some sort of device (it feels weird but painless). The doctor will tell you where to focus and they will laser. Let them know if you have any pain. Someone also stood behind me to help hold my head in place. The whole process is very quick. They flush your eye out and you use drops for a few days. No down time. Good luck to you.