1979-80
Internship (1 year), Federico Lleras Hospital Ibague, Tolima. 1980-81
Rural Service, San Rafael Hospital Rioblanco, Tolima, Colombia.
1987-89
Medical Consultant, Bausch and Lomb, Baltimore, MD USA.
1987-98
Director Surgical Department, Fundación Oftalmológica Nacional, Bogotá, Colombia.
1987-98
Director Cataract Surgery Clinic, Fundación Oftalmológica Nacional, Bogotá, Colombia.
1993-97
Member of the Board of Directors Fundación Oftalmológica Nacional, Bogotá, Colombia.
1995-00
Instructor in Phacoemulsification techniques for Alcon Lab., Colombia.
1995-97
Vice President of the Board, EXILASER S.A.
1997-00
President of the Board, EXILASER S.A.
1995-today
Appointed as VISX Global Advisor, Santa Clara, CA USA.
1997-today
Appointed as International Physician Trainer for AMO-VISX, Incorporated, Santa Clara, CA USA.
1987-1998
Associate Professor of Ophthalmology, Anterior Segment Surgery, Universidad del Rosario, Bogotá, Colombia.
1999-2006
Appointed as USA Physician Trainer for AMO-VISX, INC.
1999-03
Professor, Proctor and Medical Director of THE REAL LASIK COURSE in Bogotá, Colombia for USA Ophthalmologists.
2000
Appointed as a Clinical Investigator for the FDA approval of the S3 Software.
2001-today
Elected as a member of the Board of Directors of the INTERNATIONAL SOCIETY OF REFRACTIVE SURGERY/ AMERICAN ACADEMY OF OPHTHALMOLOGY.
2002-2007
Appointed as International Medical Monitor for AMO-VISX Inc.
2007-today
Appointed as Member of the AMO Advisory Board
2006-2010
Elected Member of the Subspecialty Day Program at the American Academy of Ophthalmology Meeting.
2007-today
Appointed as Scientific Advisor of MORIA Inc, in Paris, France.
2008
SubDirector of the Subspecialty Refractive Surgery Day at the American Academy of Ophthalmology Meeting.
2009
Director of the Subspecialty Refractive Surgery Day at the American Academy of Ophthalmology Meeting.