Clinical Advisors

Eric D. Donnenfeld, MD

Corneal Specialists and Cataract & Refractive Surgery

Dr. Eric Donnenfeld is recognized as one of the leading refractive surgeons in the United States and continues to participate in the latest ophthalmic research. Dr. Donnenfeld is currently involved in a number of projects, including the assessment of diurnal variation in tear osmolarity as a predictor for dry eye disease and evaluation of corneal sensation and the incidence of dry eye in patients undergoing refractive cataract extraction.

He has written over 170 papers on cornea, external disease, cataract and refractive surgery, and 20 book chapters and books. He is on the editorial board of 9 journals and has participated in over 40 FDA studies. He is a Fellow of the American Academy of Ophthalmology and has received its Honor Award, Senior Honor Award and Secretariat Award.

Dr. Donnenfeld served as president of many professional societies. He is on the executive board of ASCRS and is the Chief Editor of Cataract and Refractive Surgery Today. Dr. Donnenfeld graduated magna cum laude from Dartmouth College and received his MD from Dartmouth Medical School. He was a resident and Chief Resident at Manhattan Eye, Ear and Throat Hospital and he completed a Cornea Fellowship at Wills Eye Hospital. He is a trustee of Dartmouth Medical School and a clinical professor of ophthalmology at NYU.

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Edward J. Holland, MD

Corneal Specialists and Cataract & Refractive Surgery

Dr. Holland is the Director of Cornea Services at Cincinnati Eye Institute and Professor of Ophthalmology at the University of Cincinnati where he has attracted worldwide referrals for medical and surgical corneal problems and for stem cell transplantation. His clinical interests include Corneal Transplantation, Cataract Surgery, Ocular Surface Transplantation, and Refractive Surgery.

Dr. Holland formerly served as the President for the American Society of Cataract and Refractive Surgery from 2011-2012. He was awarded the Life Achievement Honor Award at the 2012 American Academy of Ophthalmology Annual Meeting and also received both the Senior Achievement Award and The Honor Award from the American Academy of Ophthalmology.

Among several other honors received, Dr. Holland has been listed in the “Best Doctors in America.” He has a national and international reputation for his knowledge and expertise in the field of cornea and external disease. He is frequently invited to attend lectures both nationally and internationally. Dr. Holland is the author of over 200 articles in peer review journals and has edited Cornea, the most widely read textbook on corneal disease and surgery.

Dr. Holland received his MD from the Loyola-Stritch School of Medicine in Chicago and trained in Ophthalmology at the University of Minnesota. He completed a fellowship in cornea and external disease at the University of Iowa, and then completed a second fellowship in ocular immunology at the National Eye Institute, National Institutes of Health in Bethesda, Maryland.

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Rajesh K. Rajpal, MD, PhD

Professor of Ophthalmology, Georgetown University Medical Center

Rajesh K. Rajpal, M.D. is the Founder of See Clearly Vision Group. Dr. Rajpal has been recognized as a top LASIK Surgeon in D.C. by Washingtonian magazine and is acknowledged as the first eye surgeon in Washington, D.C. to perform Laser Vision Correction. He currently holds appointments on the clinical faculties of Georgetown University Medical Center and George Washington University Medical Center.

Dr. Rajpal provides treatment for eye diseases as well as Laser Eye Surgery such as LASIK for the correction of nearsightedness, farsightedness and astigmatism. In addition, Dr. Rajpal provides Cataract Surgery and Intraocular Lens Implantation (IOL) for the correction of astigmatism and near vision after Cataract Surgery. As a Corneal Specialist he has particular expertise in the diagnosis and treatment of corneal disease, cornea trauma and surgical complications. He also has a special interest in the diagnosis and treatment of ocular surface problems such as dry eye and dry eye syndrome and takes personal pride in providing patients with help for dry eyes.

Dr. Rajpal earned his medical degree and completed his residency in Ophthalmology at the Medical College of Virginia in Richmond followed by a Fellowship in Cornea and External Diseases at Wills Eye Hospital in Philadelphia. Dr. Rajpal has served as Director of the Cornea and External Disease Service in the Department of Ophthalmology at Georgetown University as well as Director of the Refractive Laser Eye Center at George Washington University Medical Center in Washington, D.C.

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Debra Schaumberg, ScD, OD, MPH

VP, Scientific Affairs and Real-World Evidence At Evidera Of PPD, LLC

Dr. Schaumberg is an internationally recognized expert in ophthalmology clinical development, medical affairs, and epidemiology. She brings over 20 years of experience designing and leading early through late phase randomized trials and all aspects of real-world evidence generation and integration, including pivotal work in DED.

She brings diverse experience from academia, biotherapeutic start-ups, venture capital teams, and biopharma, and has authored hundreds of scientific publications, lectures, and scientific presentations. She is currently Vice President, Scientific Affairs at Evidera-PPD, with adjunct positions at the Harvard TH Chan School of Public Health and the University of Utah School of Medicine. Debra received her ScD from the Harvard TH Chan School of Public Health, an MPH from the Johns Hopkins Bloomberg School of Hygiene and Public Health, and an OD from the Illinois College of Optometry

John Sheppard, MD

Professor of Ophthalmology, Microbiology & Molecular Biology at Eastern Virginia Medical School

John Sheppard, MD, MMSc, is President of Virginia Eye Consultants, Program Director for Ophthalmology Residency Research, Clinical Director for the Thomas R. Lee Center for Ocular Pharmacology and Medical Director of Lions Medical Eye Bank. He has expertise in uveitis, complex cataract surgery, corneal transplantation, immunology, and ocular surface disease. He has served as a Cornea and Uveitis Consultant for The Portsmouth Naval Regional Medical Center (PNRMC), Hampton VA Hospital and Children’s Hospital of the Kings Daughters.

He serves on the Scientific Advisory Board of 104 pharmaceutical and surgical companies, and has been competitively funded by the NIH, the Orphan Drug Program and the NEI. Dr. Sheppard received the AAO Honor Award and Senior Honor Award, and Best Doctors in America since 2003. He serves as Associate and Mentor Examiner for the American Board of Ophthalmology. Dr. Sheppard has served as Principal Investigator for 96 multi-center and prospective clinical trials. He has authored over 120 papers, abstracts, and chapters, presented over 700 invited lectures, spoken in 22 countries, and served as an expert in over 400 cases. He has served on the editorial boards of EyeNet Magazine,, Eye and Contact Lens, and Clinical Ophthalmology. He is a Chief Editor for Medscape Ophthalmology.