About Dr. Chang

Expert Ophthalmologist in Los Altos

Why Choose Dr. Chang for Cataract Surgery?

• Internationally recognized cataract surgeon and ophthalmologist
• Harvard College graduate (Summa Cum Laude) and Harvard Medical School M.D.
• Ophthalmology residency at University of California, San Francisco (UCSF)
• Clinical Professor of Ophthalmology at UCSF since 1999
• Over 35 years of experience teaching cataract surgery to residents
• Recipient of UCSF’s prestigious Charlotte Baer Award for outstanding clinical faculty

Industry-Leading Cataract Expert

• Frequent international lecturer on advanced cataract surgery techniques
• Recipient of the highest global cataract surgery awards:
  • American Academy of Ophthalmology – Kelman Medal Lecture
  • American Society of Cataract & Refractive Surgery – Binkhorst Medal
  • European Society of Cataract & Refractive Surgeons – Ridley Medal
  • Canadian – Award of Excellence
  • UK/Ireland – Rayner Medal
  • German – DOC Innovator Lecture
  • Indian – Gold Medal
  • Asia Pacific Association of Cataract & Refractive Surgery – Lim Medal

Contributions to Eye Surgery

• Author of five best-selling cataract surgery textbooks, including Mastering Refractive IOLs, considered the most comprehensive textbook on the subject
• Former Chief Medical Editor of EyeWorld, an international ophthalmology journal
• Designer of widely used cataract surgical instruments bearing his name
• Clinical investigator for breakthrough technology:
  • First U.S. surgeon to implant the light adjustable lens
  • First Northern California surgeon to implant a multifocal lens and Symfony extended focus lens

Honors & Leadership

• More than 40 named lectures delivered worldwide
• Awards from major eye organizations, including:
  • International Society of Refractive Surgery – President Award
  • American-European Congress of Ophthalmic Surgery – Visionary Award
  • All India Ophthalmology Society – President’s Lecture
  • Italian Ophthalmological Society – Strampelli Medal
  • Chinese American Ophthalmological Society – Pioneer Award
  • Royal Australia & New Zealand College of Ophthalmologists – Gregg Medal
  • International Intraocular Implant Club – IIIC Medal
  • Middle East Africa Council of Ophthalmology – El-Maghraby Award
  • Asia-Pacific Academy of Ophthalmology – Jose Rizal International Medal
  • International Council of Ophthalmology – Krwawicz Gold Medal
  • Many more across Europe, Asia, the Middle East, and North America
• Former President of the American Society of Cataract & Refractive Surgery (ASCRS), currently on the executive board
• Chaired the American Academy of Ophthalmology (AAO) Cataract Preferred Practice Pattern Committee, which set clinical guidelines for cataract surgery that are used in the U.S. and many foreign countries
• Chair of the ASCRS Foundation, advancing global cataract blindness prevention
• Recipient of the AAO Humanitarian Service Award (2019)

National Recognition

• Consistently named to the national edition of Best Doctors in America
• Listed by Beckers Review as one of the top 39 ophthalmologists in the United States
• Ranked #2 (2021) and #3 (2022) in Newsweek’s list of the top 175 U.S. ophthalmologists (based on a national survey of 10,000 eye doctors)
• Repeatedly listed among the Top 100 Most Influential People in Ophthalmology (The Ophthalmologist), ranking *#5 in 2014, 2018, and 2023

He has maintained his private practice in Los Altos since 1984 and developed and founded the Peninsula Eye Surgery Center, which opened in 2005. He limits his practice to cataract and intraocular lens implant surgery.