Dr. Chynn is great, I was a -12 and thanks to Dr. Chynn I’m able to see 20/25 which is the same as contact and glasses. I’m so thankful I choose him. My surgery was 4 months ago and I couldn’t be happier. The reason of why I choose Dr.Chynn was because he uses non-flap cutting so it is 10 times safer than regular Lasik.