Dr John Chang


Dr John Hyun-Min Chang


Consultant Eye Surgeon

Dr Chang is a highly skilled and experienced ophthalmologist who provides holistic, patient-centered eye specialist care. Dr Chang always strives for the highest standard of medical and surgical treatment. He takes great care in listening to his patients and taking that extra time so that they obtain a personalised understanding of their diagnosis and treatment options.

Dr John Chang specialises in both routine and complex cataract surgery in eyes with macular degeneration, diabetic retinopathy, glaucoma or uveitis. Such patients require highly individualised treatment plans that may include intraocular anti-VEGF injection therapy, retinal laser, intravitreal slow-release steroid implant, or micro-invasive glaucoma surgery.

Dr Chang takes pride in being meticulous at every step of the surgical journey of his patients, including attention to detail about the pre-operative clinical eye assessment, choice of intraocular lens implant, and of course the dexterity and confident surgical precision for the eye surgery itself. Dr John Chang also consults at Eastwood Eye Specialists.

Community Outreach
Dr John Chang and Dr Tim Henderson visiting remote indigenous communities

Dr John Chang with one of his mentors, Dr Tim Henderson (ophthalmologist), visiting remote indigenous communities in the Northern Territory by plane to provide essential specialist eye care.

Clinical Research

Dr Chang is a clinician-scientist with a PhD in ocular immunology in addition to his clinical qualifications as an eye surgeon including international subspecialist training in medical retina and uveitis. It is this strong background in academic rigour and pursuit of knowledge that drives Dr Chang’s ethos of delivering eye care of the highest standard for his patients.

He keeps up to date with the latest knowledge and technology to provide the best possible care that is backed up by research data. Dr Chang has been awarded highly competitive research grants for his work and has been involved as an investigator on various national and international clinical trials in the treatment of macular degeneration and diabetic retinopathy.

He has been actively contributing to the progress of medical knowledge on a global scale by presenting at conferences and authoring peer-reviewed research journal publications every year, for more than the past 15 years.


  • Fellow of the Royal Australian & New Zealand College of Ophthalmologists (RANZCO).
  • Completed RANZCO specialist ophthalmology training in Australia, including at the major teaching hospitals in Sydney, Adelaide and Fred Hollows Foundation outreach eye services in Central Australia.
  • Additional sub-specialist qualification (Medical Retina & Uveitis) attained at the prestigious Moorfields Eye Hospital in London. Moorfields is the largest and oldest eye hospital in Europe.
  • PhD in Ocular Immunology, The University of New South Wales, Sydney.
  • Graduated Bachelor of Medicine & Surgery (MBBS) with First Class Honours, The University of NSW, Sydney.
Professional Memberships

  • Royal Australian & New Zealand College of Ophthalmologists (RANZCO)
  • Australian & New Zealand Society of Retina Specialists (ANZSRS)
  • Clinical adjunct lecturer, The University of New South Wales (UNSW), Sydney
  • Uveitis Special Interest Group of RANZCO
  • Australian Medical Association (AMA)
  • Australian Health Practitioner Regulation Agency (AHPRA): Full specialist registration, MED0001107400
  • Korean Australian Medical Society (KAMS)
Awards & Scholarships

Dr Chang has been the recipient of multiple NHMRC grants and scholarships for his research as well as academic prizes during his medical and specialist training.

  • The Eye Foundation, Royal Australian & New Zealand Colllege of Ophthalmologists (RANZCO) / Novartis Ophthalmics Medical Retina Research Scholarship: Research project on “Genome-wide association study of diabetic macular oedema” (2011)
  • National Health & Medical Research Council (NH&MRC) Research Project Grant: “Role of toll-like receptors in the pathogenesis of ocular inflammation” (2007-2009) Investigators: Peter McCluskey, John Chang, Denis Wakefield.
  • Ophthalmic Research Institute of Australia (ORIA) Research Grant: “The role of IL-17 in the pathogenesis of uveitis” (2007). Investigators: John Chang, Peter McCluskey, Denis Wakefield.
  • NH&MRC Medical Postgraduate Research Scholarship: “The role of pattern recognition receptors in the pathogenesis of acute anterior uveitis” (2003-2006).
  • Best Research Presentation (by poster) Award, 38th Annual Scientific Congress of RANZCO, Sydney: “Long-term Australian follow-up study of the visual outcome in autosomal dominant optic atrophy” (2006).
  • NH&MRC Traveling Research Grant: “Use of prostaglandin analogues in the treatment of glaucoma in uveitis” (2005). Clinical research conducted under the supervision of world renowned uveitis specialist, Professor Sue Lightman, Moorfields Eye Hospital, London, UK.
  • School of Medical Sciences Postgraduate Travel Grant, Faculty of Medicine, The University of New South Wales (UNSW), Sydney (2003-2005).
  • Prize for Best Oral Research Presentation at the annual scientific meeting of Department of Ophthalmology, Prince of Wales Hospital, Sydney (2004).
  • John Hirschman International Health Scholarship, School of Public Health, University of NSW: To present in Fred Hollows Foundation eye camp in rural Dhading, Nepal (1999).
  • The G.R. Cameron Memorial Prize for first place & the highest aggregate mark in Pathology, Faculty of Medicine, University of NSW, Sydney (1997).
  • The W.E. Glover Prize for Physiology for best performance in Medical Physiology, Faculty of Medicine, University of NSW, Sydney (1997).

View and search this comprehensive list of Dr Chang's publications in medical journals.