I went to Dr. Yoon wayyyy back in the day -- the mid 1990's probably. Just had a little astigmatism, but it can be tricky to correct. Anyway, Dr. Yoon was great; easy to talk to, super funny, asked the right questions, SO VERY patient through that whole "Which one is better -- one? Or two? One? or two?" Never made me feel like I was irritating him cuz maybe I didn't know the first time if it was one or two or ten million... and we'd go over it again...just a great overall experience. And when I got my glasses!!! The correction was just SPOT ON -- best correction EVER, -- just 100% positive experience from start to finish -- no problem with insurance, no "high pressure" sales pitch to buy THEIR frames... Well, I moved out of state a while back...gone for years. Got back into town, cruising' through Orange -- and there he is! Dr. Yoon! Same place! Dude, I cannot WAIT to get my eyes checked now! (I've been putting it off) I trust Dr. Yoon 100% and totally look forward to having awesome vision again and have some good laughs! Go see this guy -- he's the BEST, I'm telling' ya! :)