Theodore Leng, MD, FACS

Theodore Leng, MD, FACS

Retina specialist, Ophthalmologic surgeon, Cataract specialist, Ophthalmologist


*** Dr. Leng sees patients with retinal conditions at the Byers Eye Institute at Stanford in Palo Alto, CA. If you wish to make an appointment, please call 650-723-6995 and ask to speak with Maree del Castillo or Sonia Orellana. You can also visit this website: ***

Dr. Leng is considered to be one of the top 150 worldwide leading innovators in the field of medical and surgical retina and serves the Department of Ophthalmology as both the Director of Clinical and Translational Research and the Director of Ophthalmic Diagnostics.

He is a board-certified ophthalmologist and fellowship-trained vitreoretinal surgeon. Dr. Leng specifically focuses on surgery for macular holes, epiretinal membranes and macular pucker, and performs several of these types of surgery on a weekly basis. Dr. Leng uses the latest techniques and small-incisional sutureless technology to minimize patient discomfort and maximize functional outcomes.

Dr. Leng's medical retina specialties include the diagnosis and treatment of macular degeneration, diabetic retinopathy, diabetic macular edema and retinal vein occlusions. Dr. Leng is committed to bringing the highest level of patient-centered care for all types of retinal conditions.


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.

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.

Dr. Leng is a Fellow of the American Academy of Ophthalmology and the American College of Surgeons. He is also a member of the Association for Research in Vision and Ophthalmology, the Retina Society, the Macula Society, the Vit-Buckle Society, as well as the American Society of Retina Specialists. He volunteers his time in medical student free clinics and also flies patients as a Command Pilot for the Angel Flight West organization. Dr. Leng serves as President of the Stanford Medicine Alumni Association and supports its mission of reaching, inspiring, serving and engaging over 26,000 Stanford Medicine alumni.

Vitreoretinal and Macular Diseases

Professional Education

  • Fellowship: Stanford University School of Medicine (2010) CA
  • Residency: Bascom Palmer Eye Institute (2009) FL
  • Internship: Huntington Memorial Hospital (2006) CA
  • Medical Education: Stanford School of Medicine (2005) CA
  • Board Certification: Ophthalmology, American Board of Ophthalmology (2010)
  • MS, Stanford University, Biological Sciences (2000)
  • AB/BS, Stanford University, Philosophy & Biological Sciences (1999)

Honors & Awards

  • OSN Retina 150, Healio (2016)
  • Certificate of Recognition for a Technical Innovation, NASA (2015)
  • America's Top Ophthalmologists, Consumer’s Research Council of America (2012 - 2014)
  • Heed Fellowship, Heed Ophthalmic Foundation (2010)
  • Mentoring Program in Ophthalmology Scholarship, Annenberg Center for Health Sciences at Eisenhower (2009)
  • Paul Kayser International Travel Scholar, Pan-American Ophthalmological Foundation (2009)
  • ARVO Travel Award, National Eye Institute (2003)
  • Certificate of Recognition for Technical Innovation, NASA (2003)
  • Certificate of Recognition for a US Patent, NASA (2003)
  • Howard Hughes Medical Institute Research Training Fellowship, Howard Hughes Medical Institute (2003)
  • Medical Scientist Research Fellowship, Stanford Medical Scholars Program (2003)
  • AMA Travel Award, American Medical Association (2001)
  • Baxter Foundation Scholar, Stanford Medical Scholars Program (2001)
  • Kolos Scholar, Stanford Medical Scholars Program (2001)
  • Award for Excellence in Teaching, Stanford Department of Biological Sciences (2000)
  • Firestone Medal for Excellence in Research, Stanford University (1999)

Administrative Appointments

  • Director, Stanford Ophthalmic Reading Center (STARC) (2016 - Present)
  • Member, Stanford EPIC Provider SuperUser Network (SUN) (2016 - Present)
  • Director, Clinical and Translational Research, Department of Ophthalmology (2015 - Present)
  • IT Physician Advocate, Stanford Healthcare (2015 - Present)
  • Ophthalmology Department Liaison, Stanford Healthcare Main Operating Rooms (2013 - Present)
  • Director, Ophthalmic Diagnostics (2010 - Present)

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