I'm planning to get an eye exam for SMILE LASIK. Is visiting just two clinics enough? For those of you who have had exams, how many places did you usually visit?

I'm debating whether to go to Balgeum Nanum Ophthalmology and High Ophthalmology... I'm wondering if comparing just two places is okay. An acquaintance who had surgery at Balgeum Nanum Ophthalmology did say that visiting just two places is enough to compare. ㅠㅠ They said that daily life becomes so much easier after surgery and that a whole new world opens up if you just use artificial tears properly, so... lol... my desire to do it has grown tremendously.. Now that I've made up my mind, I want to get consultations, and if I find a place I like, I want to get the surgery done as soon as possible. By any chance, do ophthalmology clinics have a peak season? Also, I heard Balgeum Nanum Ophthalmology is really famous in the Gangnam area, so if anyone has been there, please let me know if it's difficult to get an appointment!