Han-Ying Peggy Chang, M.D.


Comprehensive Ophthalmology

Cornea and External Diseases



Mandarin Chinese, English

Board Certification

  • Ophthalmology

800 Huntington Ave.
Boston, MA 02115
Phone: 617-573-3202
Main Campus
243 Charles Street
Boston, MA 02114
Phone: 617-573-3202



Dr. Han-Ying Peggy Chang is the Clinical Director of Ophthalmology at Mass. Eye and Ear, Longwood. She is a specialist in corneal and external diseases as well as comprehensive ophthalmology. A full-time ophthalmologist at Mass. Eye and Ear, Dr. Chang divides her time between the Comprehensive Ophthalmology and Cataract Consultation Service and the Cornea and Refractive Surgery Service. Her clinical interests include cataract surgery and corneal disease and surgery. As part of the comprehensive ophthalmology service, Dr. Chang specializes in cataract surgery as well as the diagnosis and management of corneal disorders, with a particular focus on tumors of the ocular surface.

Dr. Chang completed her medical training from Johns Hopkins University School of Medicine where she was inducted into Alpha Omega Alpha. She completed an internship at Brigham and Women's Hospital, and then matriculated into the Harvard Ophthalmology Residency Training Program. Subsequently, she subspecialized in Cornea, External Disease, and Refractive Surgery at Mass. Eye and Ear as Chief Clinical Fellow, and was selected to attend the prestigious Cornea Society Advocacy Ambassador Program, Mid-Year Forum.

Dr. Chang's research interests include bioinformatics (developing software tools that help store, retrieve and analyze biological data) and the development of enhanced electronic patient medical record systems. She is interested in the use of electronic medical record systems in data collection for potential large scale epidemiological studies, and has worked closely with Partners eCare to optimize this functionality in the current EMR as well as the American Academy of Ophthalmology Intelligent Research in Sight registry, the country’s largest clinical registry.

Dr. Chang is a member of numerous professional societies, including the American Academy of Ophthalmology, the American Society of Cataract and Refractive Surgery, and the Cornea Society.

Clinical Interests

Comprehensive ophthalmology, cataract surgery, corneal disease and surgery

Research Interests

Bioinformatics and electronic medical record systems


For a full publication list, please see her CV.

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. JAMA Ophthalmol. 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>>

To learn more about Dr. Chang, read her "Meet a Specialist" profile here.



  • Computing and Information Systems, Northwestern University, BA
  • Johns Hopkins University School of Medicine, M.D.


  • Ophthalmology, Harvard Medical School


  • Cornea, External Disease, and Refractive Surgery, Mass. Eye and Ear