Theodore Leng, MD, FACS

Retina specialist, Ophthalmologic surgeon

Clinical Assistant Professor, Ophthalmology
Bio:   *** 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 either Heather Lancor or Maree del Castillo ***

Dr. Leng is a board-certified ophthalmologist and fellowship-trained vitreoretinal surgeon. He 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.

His 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 is the Director of Ophthalmic Diagnostics at Stanford. Dr. Leng has been named one of “America’s Top Ophthalmologists” by the Consumers’ Research Council of America since 2012.

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 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 highly selective Retina 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.

Byers Eye Institute

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

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

Administrative Appointments

  • 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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