1999
Cornea, External Disease and Refractive Surgery, Wills Eye Hospital, United States
1998
Cornea, External Disease and Refractive Surgery, Cornea Consultants, Affiliated with Harvard Medical School & Massachusetts Eye and Ear Infirmary, United States
1995
Ophthalmology, Phramongkutklao College of Med, Thailand
1989
Doctor of Medicine, Phramongkutklao College of Medicine, Thailand
