Peter Y. Chang, MD, FACS

Partner and Co-President

Dr. Peter Chang was born and raised in Taipei, Taiwan. He moved to the United States at age 13 and has come to call New England his second home. He received Bachelor of Science in Biology from Brown University in 2004 and Doctor of Medicine from Tufts University School of Medicine in 2008. After medical school, Dr. Chang pursued a 2-year Clinical Research Fellowship in Uveitis and Ocular Immunology under the mentorship of Dr. C Stephen Foster, and he served as the Chief Research Fellow from 2009 to 2010. The training helped solidify his interest in complex ocular conditions and systemic rheumatic disorders. Dr. Chang underwent residency training at the New York Eye and Ear Infirmary of Mount Sinai in New York City. During his senior year, he was elected by faculty and peers to be the Administrative Chief Resident. Dr. Chang then completed fellowship training in Vitreoretinal Surgery at the Illinois Eye and Ear Infirmary in Chicago, where he was named Fellow of the Year.

Dr. Chang joined Massachusetts Eye Research and Surgery Institution (MERSI) as a Partner in July of 2016 and became its Co-President in January 2021. His clinical expertise includes routine and complex cataract surgery, ocular inflammatory diseases, and vitreoretinal disorders. He has authored several book chapters and peer-reviewed publications, and also is a co-editor of Uveitis: A Quick Guide to Essential Diagnosis.

In his free time, Dr. Chang enjoys playing the Beethoven piano sonatas and Chopin ballades, savoring Tuscan and Burgundian wines, as well as traveling domestically and internationally with his wife and two kids. He is fluent in Mandarin Chinese.


Tufts University School of Medicine | 2004-2008

Doctor of Medicine


Brown University | 2000-2004

• Bachelor of Science in Biology

Postgraduate Training

Illinois Eye and Ear Infirmary | 2014-2016

• Fellow, Vitreoretinal Surgery


New York Eye and Ear Infirmary | 2011-2014

• Resident, Ophthalmology

• Chief Administrative Resident (2013 – 2014)


Mount Auburn Hospital | 2010-2011

• Intern, Internal Medicine

• Clinical Instructor, Harvard Medical School


Massachusetts Eye Research and Surgery Institution | 2008-2010

• Chief Research Fellow, Uveitis and Ocular Immunology

• Associate, Ocular Immunology and Uveitis Foundation

• Assistant Editor, Contemporary Ophthalmology


Ocular inflammatory diseases

Vitreoretinal surgery






Optic neuritis

Orbital inflammation

Dry eye

Ocular allergy

Autoimmune retinopathy

Ocular cicatricial pemphigoid

Retinal tear/hole & detachment

Lattice degeneration

Macular hole

Macular pucker (epiretinal membrane)

Age-related macular degeneration

Myopic degeneration

Diabetic retinopathy

Retinal vascular occlusion

Central serous retinopathy

Vitreous opacities (floaters) and hemorrhage

Vitreoretinal lymphoma

Routine and complex cataracts

Aphakia and subluxated intraocular lens

Glaucoma and ocular hypertension

Make An Appointment