Han-Ying Peggy Chang, M.D.

Harvard Medical School

Instructor in Ophthalmology, Department of Ophthalmology

Massachusetts Eye and Ear

Clinical Director of Ophthalmology, Longwood

Research Summary

Center/Research Area Affiliations

Research Summary

As part of the comprehensive ophthalmology service, Dr. Chang specializes in cataract surgery as well as diagnosis and management of corneal disorders. Her research interests include bioinformatics and the use of electronic medical record (EMR) systems in data collection for potential large-scale epidemiological studies. She works closely with Partners eCare to optimize this functionality in the current EMR and with the American Academy of Ophthalmology Intelligent Research in Sight registry, the country’s largest clinical registry.

For more information, download her CV [PDF].

Select Publications

A Revised Estimate of Costs Associated With Routine Preoperative Testing in Medicare Cataract Patients With a Procedure-Specific Indicator. Chen CL, Clay TH, McLeod S, Chang HP, Gelb AW, Dudley RA. i. 2018 Mar 1;136(3):231-238. 

Assessing Resident Cataract Surgery Outcomes Using Medicare Physician Quality Reporting System Measures. Finn AP, Borboli-Gerogiannis S, Brauner S, Peggy Chang HY, Chen S, Gardiner M, Greenstein SH, Kloek C, Miller JW, Chen TC. J Surg Educ. 2016 Sep-Oct;73(5):774-9.

Piggyback intraocular lens to shield the posterior capsular bag during lens exchange. Peggy Chang HY, Garrett K, Melki S. J Cataract Refract Surg. 2015 Jun;41(6):1319-21.

Primary implantation of type I Boston keratoprosthesis in nonautoimmune corneal diseases. Chang HY, Luo ZK, Chodosh J, Dohlman CH, Colby KA. Cornea. 2015 Mar;34(3):264-70.

Differentiating bilateral superior oblique paresis from sensory extorsion. Muthusamy B, Peggy Chang HY, Irsch K, Ying HS, Muthusamy K, Anwar D, Guyton DL. J AAPOS. 2013 Oct;17(5):471-6.

The genetics of keratoconus. Chang HY, Chodosh J. Semin Ophthalmol. 2013 Sep-Nov;28(5-6):275-80.

View a list of publications on pubmed.gov>>



  • 2001: B.A., Computing and Information Sciences, Northwestern University
  • 2008: M.D., Medicine, Johns Hopkins University School of Medicine

Postgraduate Training

  • 2009: Internship, Internal Medicine, Brigham and Women's Hospital
  • 2012: Residency, Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear
  • 2013: Fellowship, Cornea and External Diseases, Massachusetts Eye and Ear

Academic Appointments

  • 2001-2004 Applications Developer, Information Technology, UBS Investment Bank, Chicago, IL
  • 2009-2013 Clinical Fellow in Ophthalmology, Harvard Medical School
  • 2013- Instructor in Ophthalmology, Harvard Medical School
  • 2013- Partners eCare Clinical Content Lead MD in Ophthalmology

Professional Memberships

  • 2008- Member, Massachusetts Medical Society
  • 2009- Member, American Academy of Ophthalmology
  • 2013- Member, Cornea Society
  • 2013- Member, American Society of Cataract and Refractive Surgery
  • 2015- Member, New England Ophthalmological Society


  • 1997 Valedictorian, William Fremd High School, Palatine, IL
  • 1998 Alpha Lambda Delta Academic Honor Society, Northwestern University, Evanston, IL
  • 1998 National Society of Collegiate Scholars, Northwestern University, Evanston, IL
  • 1999 Chinese American Society Leadership Program, Washington D.C.
  • 2000 Second Prize, Annual Robot Design Competition, Northwestern University, Evanston, IL
  • 2000 Phi Beta Kappa Academic Honor Society, Junior Inductee, Northwestern University, Evanston, IL
  • 2001 Summa Cum Laude, Northwestern University, Evanston, IL
  • 2006 William H. Welch Pathology Student Award, Johns Hopkins School of Medicine, Baltimore, MD
  • 2008 Alpha Omega Alpha Medical Honor Society, Johns Hopkins School of Medicine, Baltimore, MD
  • 2013 AAO Mid-Year Forum Advocacy Ambassador Program, Cornea Society, Washington D.C.
  • 2018 Norman Knight Leadership Development Award, Mass. Eye and Ear, Boston, MA