- Research Fellowship in Ophthalmic Epidemiology at the Institute of Ophthalmology, London (1991)
- Fellowship in Ophthalmology at The Weill Medical College, Cornell University, New York (1994)
- Residency in Ophthalmology at Mount Sinai School of Medicine, New York (1996)
- Refractive Surgical Fellowship under laser eye surgeons Zaldivar Arbelaez, Chacon, and Barraquer (1997)
- Fellowship in Cornea, External Disease and Refractive Surgery at the University of British Columbia, Canada (1999)