STATEMENT OF CREDENTIALS

I, William Ellis, M.D., F.A.C.S., do certify that I studied and do possess an electrical engineering degree from the University of California at Berkeley. Furthermore, I certify that I have been employed as an expert medical witness in a case before the United States Federal Court on laser safety.I further certify that I studied medicine at Washington University in St. Louis where I received my medical degree, and served a surgical internship at the Duke University School of medicine in the Department of Surgery.While serving at the National Heart and Lung Institute of the National Institutes of Health, Bethesda, Maryland, I helped supervise research and development on the artificial heart and organized panels to review progress in atherosclerosis research between 1969 and 1971. I am board-certified by the American Board of Ophthalmology, and received prior residency training at Stanford University in the Department of Ophthalmology. Furthermore, I am a certified subspecialist in both cataract and refractive surgery, with Boards from the American College of Eye Surgery and has served as a director of the Society for the Advancement of Laser Technology.

I have authored three surgical textbooks titled, "Keratotomy Surgery for the Correction of Myopia, Hyperopia, and Astigmatism," first published in 1984. A co-author of the 1991 edition of this textbook was Professor Statyslov N. Fyodorov, the Russian academician who developed and helped to perfect keratotomy surgery. Furthermore, in 1990 at the International Congress of Ophthalmology held in Singapore, I was chosen to select, organize and chair the final major symposium of the Congress on the surgical correction of astigmatism. Furthermore, I have authored approximately 20 scientific publications, most of which are in refractive surgery and given 87 major talks to medical and scientific organizations on refractive surgery. I also certify that my electrical engineering major was in Field and Wave Transmission, the subspecialty under which laser theory and design was taught at that time.