Dr. Chang is the Chief of the Otology and Neurotology Division in the Department of Otorhinolaryngology, Head and Neck Surgery, the Chinese University of Hong Kong, with special interest in hearing degeneration, auditory implantation, vestibular diseases, tinnitus, transcanal endoscopic ear surgery and skull base surgery. She pioneered endoscopic ear surgery in Hong Kong since 2016 and performed the first transcanal skull base surgery in the same year. She performed most of the auditory implants and is the leader of many of the otology research in her centre. She is currently the Assistant Director of Institute of Human Communicative Research, Trainer of The Hong Kong College of Otorhinolaryngologists, the Asia Pacific Otorhinolaryngologic Surgical Training Group (APOST) and the World Skull Base Group. She is a member of the International Working Group on Endoscopic Ear Surgery (IWGEES), Secretary of the Pan-Asia Working Group on Endoscopic Ear Surgery (PAWGEES). She has collaborations with John Hopkin’s Centre for research related to elderly hearing loss and dementia. She is the Chief Author of the Total Endoscopic Ear Surgery Dissection Manual published by the CUHK with a total of more than 30 publications including international journals, peers reviewed abstracts and book chapters.