Dedication

To my father, Dr. Zhen-sheng Wang, my mother, Dr. A-lian Xu, my brother, Dr. Ming-yu Wang, my wife, Anle Wang, my son, Dennis Wang and my godparents, Misha Bartnovsky and June Rudolph, and my entire family, as well as my teachers, mentors, colleagues, and friends.

To my patients, with whom I have shared the journey from darkness to sight.

To China, my birth country, which shaped my character.

To America, my adopted country, which gave me freedom and the opportunity to serve.

To God, the Creator of all.