Retina Faculty

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Daniela Ferrara, MD

Assistant Professor of Ophthalmology

Tufts University School of Medicine

Dr. Ferrara received her medical degree suma cum laude from Federal University of Rio de Janeiro, Brazil, one of the most prestigious universities in South America. During medical school, she joined a research group from the Biophysics Institute and conducted laboratory research projects on macromolecular metabolism at the Health Sciences Center. She completed a surgical internship and ophthalmology residency at the same University, followed by a Master’s Degree in Ophthalmology conducting experimental research on electrophysiology of chromatic vision. Dr. Ferrara completed her training at University of Sao Paulo, Brazil, achieving a PhD degree in Visual Sciences with her research on multimodal imaging on retinal dystrophy. Dr. Ferrara moved to the United States in 2006 to complete a research fellowship in Medical Retina at the Manhattan Eye, Ear & Throat Hospital affiliated to New York University, and since then she has been working on multimodal imaging analysis for clinical trials on retinal diseases. Dr. Ferrara’s training and career are shaped to bring together basic research and clinical challenges.

Dr. Ferrara’s major research interests include imaging of the posterior segment of the eye, and multimodal imaging analysis on pathological conditions of the vitreous, retina and choroid. She is focused on dystrophic and degenerative diseases of the retina, and retinal vascular diseases. As Assistant Professor of Ophthalmology at Tufts University School of Medicine, Dr. Ferrara is currently involved with the Optical Coherence Tomography Team at the New England Eye Center, a multidisciplinary group that promotes the scientific contribution on a clinical setting between retina specialists and the Research Laboratory of Electronics from the Massachusetts Institute of Technology.

Ronald E. Frenkel, MD
Former, Voluntary Professor of Ophthalmology,
Bascom Palmer Eye Institute

Dr. Frenkel is a Former Professor of Ophthalmology on the Voluntary Faculty at the US News #1 Ranked Eye Hospital Bascom Palmer Eye Institute. He is a recipient of the Distinguished Alumni Award of the Kresge Eye Institute and has been annually rated a Top Doctor by U.S. News and World Report and Castle Connolly. Dr. Frenkel a recipient of the Achievement Award from the American Academy of Ophthalmology. Dr. Frenkel was honored with an Ophthalmology Fellowship at Harvard Medical School, did his residency at the Kresge Eye Institute and his internship at Harvard Medical School. His multi-field expertise is evidenced by him being one of the very few Elected Members of both the American Society of Retina Specialists and the American Glaucoma Society.

He has spoken at over 100+ Medical meetings, published over 80+ Peer Reviewed Manuscripts & Abstracts, and has been a Principal Investigator in 90+ Clinical Trials that have brought revolutionary new treatments to patients in his field of studies.

Michael S. Ip, MD
Professor of Ophthalmology at David Geffen School of Medicine, UCLA

Dr. Ip is a graduate of New York University School of Medicine. He completed his ophthalmology residency at the University of Pittsburgh and his vitreoretinal fellowship at New England Center, Tufts University.

Dr. Ip is the author of hundreds of articles in leading professional journals and books. He is also known for his finely honed talks to national and international audiences of his peers. He is a principal investigator or co-principal investigator on several multi-million dollar national research enterprises where he and his colleagues work to better define therapies that will improve vision in patients with diabetic retinopathy, age-related macular degeneration, retinal vein occlusion, and other diseases.

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Lee M. Jampol, MD
Professor of Ophthalmology
Northwestern University

Dr. Jampol is a full-time faculty member at Northwestern University. He graduated from Yale University School of Medicine. His career has focused on clinical trials, inflammatory diseases of the retina, cystoid macular edema, pharmacology of the retina and central serous chorioretinopathy.


He has also been extensively involved in clinical and research work on diabetic retinopathy and age-related macular degeneration. Since 1985, when he became a member of the Data Monitoring Committee of the Macular Photocoagulation Study, he has been extensively involved in data monitoring and planning of clinical trials. 

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Wen-Hsiang Lee, MD
Assistant Professor of Clinical Ophthalmology
Bascom Palmer Eye Institute

Dr. Wen-Hsiang Lee is an ophthalmologist in Miami, Florida and is affiliated with multiple hospitals in the area, including Bascom Palmer Eye Institute, Ann Bates Leach Eye Hospital and Jackson Health System in Miami. She received her medical degree from John Hopkins University School of Medicine. 

Dr. Lee's clinical specialties are macular diseases, vitreoretinal diseases and surgery, diabetic retinopathy,  retina detachment, retinal degeneration, macular degeneration and related disorders. 

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Theodore Leng, MD, FACS
Assistant Professor of Ophthalmology and, by courtesy, of Anesthesiology, Perioperative and Pain Medicine at the Stanford University Medical Center 

Theodore Leng, MD, MS, FACS received his AB in Philosophy and BS in Biological Sciences from Stanford University, graduating with Departmental Honors. He received his Masters of Science in Biological Sciences from Stanford University while conducting research at the Hopkins Marine Station in Pacific Grove, CA on cellular ion membrane channels. Dr. Leng received his medical degree from the Stanford University School of Medicine, during which he completed a Howard Hughes Medical Institute Research Training Fellowship.

Dr. Leng completed his ophthalmology residency at Bascom Palmer Eye Institute, the highest ranked eye hospital and residency training program in the country. He was awarded the Heed Fellowship, the most prestigious national award for ophthalmologists entering a career in academic medicine. Dr. Leng returned to Stanford University to complete a fellowship in vitreoretinal diseases and surgery and was awarded the Paul Kayser International Travel Scholarship to work in Santiago, Chile. He has been a full-time faculty member of the Stanford University Department of Ophthalmology since 2010 and has been named one of “America’s Top Ophthalmologists” by the Consumers’ Research Council of America and is a Castle Connoly "Top Doctor."

In addition to his clinical practice, Dr. Leng has a vibrant clinical and basic science research program and has published over 200 peer-reviewed scientific manuscripts, book chapters and abstracts. He is frequently invited to speak at national and international meetings. Dr. Leng serves as the Associate Editor of the peer-reviewed journal, Ophthalmic Surgery Lasers & Imaging Retina.

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Edwin H. Ryan, MD
Associate Clinical Professor of Ophthalmology
University of Minnesota

Dr. Ryan was awarded his Doctor of Medicine degree from the University of Minnesota. He completed a residency in Ophthalmology at Northwestern University and a fellowship in Diseases and Surgery of the Retina and Vitreous at Washington University in St. Louis.

Dr. Ryan directed the Retina Service at the University of Minnesota Department of Ophthalmology from 1989 to 1992, and is currently an Associate Clinical Professor of Ophthalmology.

Dr. Ryan joined VitreoRetinal Surgery in 1996.

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David Sarraf, MD
Clinical Professor, Ophthalmology, Stein Eye Institute, UCLA

Dr. David Sarraf is Clinical Professor of Ophthalmology at the Stein Eye Institute at UCLA and member of the Retinal Disorders and Ophthalmic Genetics Division. He has published close to 250 research papers, case reports and reviews and has authored 16 book chapters and is co-author for the second edition of the Retina Atlas and will be Section Editor for the 7th edition of Ryan Retina.  Dr. Sarraf is a world leader in the field of advanced retinal imaging and has delivered approximately 300 invited lectures at various meetings worldwide including several endowed and keynote lectures.


Dr. Sarraf is Associate Editor for the journal Retinal Cases and Brief Reports and is an Editorial Board Member of the journals Retina and OSLI Retina and is Section Editor of (Ocular Imaging Section) for the Canadian Journal of Ophthalmology. He is also Section Editor for the Retina Times (X-Files) of the ASRS and has served on the BCSC section of the AAO and has been awarded Achievement and Secretariat and Senior Achievement awards by the AAO.


Dr. Sarraf is also Co-Director of the Pacific Retina Club and the International Retinal Imaging Symposium and is co-founder of the International Retinal Imaging Society. He is a member of the ASRS, AOS (American Ophthalmological Society), Retina Society and Gass Club and has served as an Executive Board Member and Program Committee Member in the Macula Society. He has also served as an Advisory Consultant of the DRCR Network and is a Scientific Board Member of the Macula Foundation Inc and Optovue Inc.


Dr. Sarraf’s focus of research interest is in the field of advanced retinal imaging. He has been a pioneer in the clinical application of OCT angiography and is a world expert on OCTA and OCT imaging of the macula and has applied these technologies to better understand the structure and arrangement of the retinal capillary plexus and the ischemic cascade.


Dr. Sarraf’s research has also focused on the dry and wet forms of age-related macular degeneration (AMD) and specifically the evaluation of pigment epithelial detachment and retinal pigment epithelial tears. He was nominated to the American Ophthalmological Society because of his research work on the subject of PED and AMD.

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Richard F. Spaide, MD
Clinical Associate Professor, Ophthalmology
Vitreous Retina Macula Consultants of New York

​Dr. Spaide specializes in diseases of the retina and vitreous. His particular interests include retinal surgery, macular degeneration, macular holes, macular pucker, diabetic retinopathy, and intraocular inflammation. He has published more than 300 articles and 50 book chapters and 9 books about the diagnosis and treatment of retinal diseases. He has given lectures around the world.

Dr. Spaide was chosen as the 2016 recipient of the Roger H. Johnson Macular Degeneration Award. This is given every 2 years to an individual making a substantial contribution to the understanding, diagnosis, or treatment of macular degeneration, and is one of the most prestigious awards in macular degeneration research.

Dr. Spaide is on medical boards of a number of institutions and has been mentioned in multiple Who's Who and Best Doctors lists. He is a past executive editor of the American Journal of Ophthalmology and is currently associate editor of the journal Retina. He is on the editorial board of numerous journals.

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Michael W. Stewart, MD
Professor and Ophthalmology Chair
Mayo Clinic, Jacksonville, Florida

Michael W. Stewart, MD is a Professor in the Mayo Clinic College of Medicine and Chairman of the Department of Ophthalmology at the Mayo Clinic in Jacksonville, Florida. For the past 7 years, Dr. Stewart has also served as Chairman of the Mayo Clinic Facilities Planning Committee where he heads the institution's construction projects and maintenance services.

Dr. Stewart received his undergraduate degree in chemistry from Harvard College and graduated from the McGill University School of Medicine. He served as an Internal Medicine resident at Jackson Memorial Hospital/University of Miami and completed a residency of Ophthalmology at Emory University. This was followed by vitreoretinal fellowships at the Retina Research Foundation at Touro Infirmary in New Orleans and the University of California, Davis.  Dr. Stewart is past president of the Florida Society of Ophthalmology and current councilor of the American Academy of Ophthalmology. He is a member of the American Society of Retina Specialists and Macula Society and received an Achievement Award from the American Academy of Ophthalmology.

Glaucoma Faculty

Louis B. Cantor, MD
Professor and Jay C and Lucile L Kahn Chair of Glaucoma Ressearch and Education

Louis B. Cantor, MD completed his undergraduate and graduate medical education at Indiana University and was an ophthalmology resident at Indiana University, graduating in 1984. In 1985, he completed his glaucoma fellowship at Wills Eye Hospital in Philadelphia under the direction of George L. Spaeth, MD.


Dr. Cantor joined the IU School of Medicine Department of Ophthalmology as director of the Glaucoma Service in 1985. From 1986 through 1989, Dr. Cantor also served as chief of Ophthalmology at Wishard Memorial Hospital, now Eskenazi Health (Indianapolis). From 1996 until 2006, he served as director of the Ophthalmology Residency Program for the department. In 1999, he attained the rank of Professor of Ophthalmology. Dr. Cantor also served as chair for the department from 2009 - 2017.

Dr. Cantor is a frequent invited lecturer and has presented several named lectureships. He is the recipient of multiple grants and has published more than 100 abstracts and 80 peer reviewed publications.


Dr. Cantor was appointed Senior Secretary for Education for the American Academy of Ophthalmology in January 2013. He is a member of the American Medical Association, the Indiana State Medical Association, the Association for Research and Vision in Ophthalmology, the American Glaucoma Society, and other professional organizations. In addition, Dr. Cantor serves as an associate examiner for the American Board of Ophthalmology and has served as a scientific advisor and reviewer for many ophthalmology publications, including Ophthalmology, American Journal of Ophthalmology, Archives of Ophthalmology, Journal of Glaucoma and others.

Ronald E. Frenkel, MD
Former, Voluntary Professor of Ophthalmology,
Bascom Palmer Eye Institute

Dr. Frenkel is a Former Professor of Ophthalmology on the Voluntary Faculty at the US News #1 Ranked Eye Hospital Bascom Palmer Eye Institute. He is a recipient of the Distinguished Alumni Award of the Kresge Eye Institute and has been annually rated a Top Doctor by U.S. News and World Report and Castle Connolly. Dr. Frenkel a recipient of the Achievement Award from the American Academy of Ophthalmology. Dr. Frenkel was honored with an Ophthalmology Fellowship at Harvard Medical School, did his residency at the Kresge Eye Institute and his internship at Harvard Medical School. His multi-field expertise is evidenced by him being one of the very few Elected Members of both the American Society of Retina Specialists and the American Glaucoma Society.

He has spoken at over 100+ Medical meetings, published over 80+ Peer Reviewed Manuscripts & Abstracts, and has been a Principal Investigator in 90+ Clinical Trials that have brought revolutionary new treatments to patients in his field of studies.

Robert D. Stamper, MD
Professor & Director of Glaucoma Clinic, UCSF

Dr. Robert Stamper, director of the Glaucoma Clinic, is an ophthalmologist who specializes in glaucoma and cataract surgery. His research interests include early methods in diagnosing glaucoma to prevent vision loss. Stamper's research efforts have involved evaluating new surgical procedures for glaucoma.

Stamper earned his medical degree at State University of NY, Downstate Medical Center. He spent two years as a Peace Corps Physician. Later he completed his residency in ophthalmology and fellowship in glaucoma at Washington University in St. Louis.

Dr. Stamper belongs to the American Academy of Ophthalmology and received its Lifetime Achievement Award in 2008. He also is a member of the American Ophthalmological Society, the American Glaucoma Society and the Association for Research in Vision and Ophthalmology. Currently, he is the immediate past chairman of the Prevent Blindness Northern California.

Steven D. Vold, MD
Chief Medical Editor of Glaucoma Today, 
Ophthalmologist at Vold Vision

Dr. Steven Vold is an award-winning, board-certified ophthalmologist based in Northwest Arkansas with over 24 years of experience. As an innovative vision professional in the industry, he specializes in complex glaucoma and cataract diagnosis and treatment, as well as groundbreaking laser vision correction treatments. Dr. Vold is known for his passion and dedication to his patients, and strives to make every patient comfortable and happy with their results.


Graduating from Concordia College in Moorhead, Minnesota with a major in Biology, Dr. Vold went on to the University of Minnesota Medical School in Minneapolis. Here, he graduated as a member of the Alpha Omega Alpha Honor Medical Society, a group that recognizes the top ten percent of medical students in the nation. Afterwards, he completed an ophthalmology residency and a glaucoma fellowship at the Northwestern University Medical School in Chicago, Illinois. With numerous scholarships and academic awards, Dr. Vold has held himself to the highest of standards throughout his education and beyond.

Cataract/Refractive, Neuro, Plastics Faculty

Kendall E. Donaldson, MD, MS
Professor of Clinical Ophthalmology
Cornea/External Disease/Refractive Surgery
Medical Director Bascom Palmer Eye Institute of Plantation

Kendall E. Donaldson, MD, MS, Professor of Clinical Ophthalmology and cornea specialist at the Bascom Palmer Eye Institute completed her residency training and cornea/external disease fellowship at Bascom Palmer in 2004.  Prior to ophthalmology she completed a Master’s degree in anatomy and physiology, serving as an instructor and eventually directing the anatomy labs for the University of Maryland throughout the course of her undergraduate and graduate education.  During her ophthalmology training, she also pursued a certificate program in Management through the Wharton School for Business preparing her to become the Medical Director of the Bascom Palmer Eye Institute at the Plantation satellite upon its opening in November of 2004.  Since that time, the satellite has grown to include 16 doctors who rotate through the facility providing patients with a full spectrum of ophthalmic services including the highly specialized care available at the Ocular Surface Center in Plantation. 


In addition to caring for her patients, Dr. Donaldson has also enjoyed working with the residents and fellows and became co-director of the cornea fellowship in 2013.  She continues to enjoy teaching surgical skills and working on research projects with the residents and fellows on a daily basis.  She travels to give over a hundred lectures annually on a local, national and international levels on cataract surgery and corneal disease.  She has authored a variety of peer-reviewed and non-peer reviewed articles and book chapters.  She has also organized, moderated, and lectured at many local and national meetings and served on several AAO and ASCRS committees. Dr. Donaldson has received many awards including Ocular Surgery News Top 300 doctors each year, Florida Superdoctors, Leading Physicians of the World, and the MillenialEye Outstanding Female Leader Award in 2016.


Dr. Donaldson’s primary research interests are in the area of advancements in cataract surgery, and in particular, laser-assisted cataract surgery, and severe ocular surface disease.   She performs various types of corneal transplantation procedures, laser vision correction procedures, ocular surface reconstruction, and cataract surgery.   In her free-time she enjoys spending time with her family in Florida, playing tennis, paddle boarding, and playing the piano with her 3 children.

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William Katowitz, MD
Attending Surgeon, Fellowship Director & Associate Professor of Ophthalmology at Perelman School of Medicine at University off Pennsylvania

Dr, William Katowitz is an Attending Surgeon in the Division of Ophthalmology. He works with children with thyroid conditions, hemangiomas and vascular malformations. Dr. Katowitz graduated from the University of Pennsylvania and did his internship at Pennsylvania Presbyterian Medical Center. He is known for his expertise in Oculoplastic and orbital surgery. 

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Terrence O'Brien, MD

Professor of Ophthalmology, Charlotte Breyer Rodgers Chair in Ophthalmology

Terrence O'Brien, MD is a professor and ophthalmologist for Bascon Palmer Eye Institute. He graduated from the University of Michigan in 85 and completed his residency training at Baylor College Of Medicine-The Cullen Eye Institute in 1990. He specializes in cataract and refractive disease, cornea and external disease, and LASIK and laser vision correction surgery. 

He is known for his expertise in cataract and intraocular lens, corneal and external diseases, corneal transplant surgery, and ocular infectious disease. Some of his research interests include ocular microbiology, avoidance and management of complications of refractive surgery and ocular infectious diseases. 

Legal Co-management/Private Equity Faculty

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J. Matthew Owens, Esq

Corporate & Finance Partner at
Arnold Porter

Matt Owens advises clients on all aspects of mergers, acquisitions, and divestitures. Mr. Owens has particular experience in healthcare transactions, and frequently represents private equity funds and their portfolio companies. He counsels publicly traded and privately held companies, as well as boards of directors, on various corporate and commercial matters, including corporate governance, compliance and risk management matters.

Mr. Owens' clients operate in various industries, but he has particular experience in the healthcare, government contracting and technology services industries. He serves as ongoing corporate counsel for multiple pro bono clients of the firm, advising on various corporate governance and commercial issues. Mr. Owens is a 2001 graduate of the Georgetown University Law Center, where he was a member of the Georgetown Law Journal.

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Allison Shuren, Esq

Partner/Co-Chair of Life & Sciences & Healthcare Regulatory Group at Arnold Porter

Allison Shuren co-chairs the Life Sciences and Healthcare Regulatory practice and advises a wide range of health care clients on regulatory, compliance, enforcement, and legislative matters. Her clients include large international manufacturers of medical devices, pharmaceuticals, biologics, emerging companies with early stage concepts, hospitals and integrated health networks, ambulatory surgery centers, diagnostic testing facilities, clinical laboratories, dialysis centers, physicians, physician practice management companies, and developers of mobile and digital health technology. 

A main primary focus of Ms. Shuren is compliance with health regulatory requirements, especially the healthcare fraud and abuse laws. She counsels on complex referral arrangements as well as sales and marketing programs, including discounts and rebates, represents clients in government investigations and qui tam actions involving False Claims Act, Anti-Kickback Statute, Stark Law, and health care fraud allegations. She regularly interacts with the US Department of Health and Human Services Office of Inspector General, the US Department of Justice, and the Centers for Medicare and Medicaid Services. She also leads internal compliance investigations and regulatory due diligence related acquisitions and investments. Ms. Shuren's goal is to be a trusted advisor who helps clients meet legal requirements while achieving success in a competitive healthcare marketplace.