ㅌㅇㅅ ㄸㅋ I came to the conclusion. One of my eyes kept going loose and it was uncomfortable, so I went to retake the exam. The consultations at both hospitals were similar. They said both were in a loose state and the line needed to be lowered. The difference was that ㅌㅇㅅ said I needed to do eye surgery, and ㄸㅋ needed it . They said there was none. For ㅌㅇㅅ, you had to pay the reservation fee on the spot, so you got a 5% discount, so even if you had to pay the penalty, you paid for it. ㄸㅋ, there was no such thing. The consultation fee was 20,000 won. ㄸㅋ There was no waiting time. The waiting time was a bit long for both, about an hour? I don't really want to do snow school, so I'm thinking about canceling ㅌㅇㅅ. Both were equally friendly, and I felt like ㅌㅇㅅ was more unforced and respected my opinion. I'm going to go there next week and make a decision.