Department of Otorhinolaryngology, Head and Neck Surgery (ENT) Faculty of Medicine, The Chinese University of Hong Kong 香港中文大學 醫學院 耳鼻咽喉 — 頭頸外科學系 - Prof NG Hoi Yee Iris
Iris NG


  • Chief, Division of Audiology
    Assistant Professor
    Department of Otorhinolaryngology, Head and Neck Surgery, CUHK
  • Assistant Director
    Institute of Human Communicative Research, CUHK


Dr Iris Ng was trained as a clinical audiologist, and registered as a member of the Register of Audiologists accredited by the Department of Health. She serves the community with identification and rehabilitation of hearing and communication difficulties. She, and the Division of Audiology led by her, is currently engaged in a few funded research and community projects on management of hearing loss among elderly population, as well as the effect and outcome evaluation of various hearing prostheses. She has also worked for over 10 years on the application of psychometrics, in the development and validation of standardised assessment tools in speech and hearing sciences.



  • PhD in Surgery (CUHK)
  • MSc in Audiology (HKU)
  • BSSc in Psychology (CUHK)


Research Interests

  • Early identification and intervention of hearing loss among the elderly population
  • Effect and outcome evaluation of hearing prosthesis
  • Clinical application of speech reception tests in Chinese
  • Development and validation of assessment tools in speech and hearing sciences
  • Paediatric audiology


Specialisations (Expertise)

  • Outcome evaluation of hearing prosthesis, including implantables and wearables
  • Test development and validation



  • Registered Audiologist (Register of Audiologists accredited by Department of Health)


Professional Service

  • Chairperson of the Professional Council, Hong Kong Institute of Audiologists
  • Executive Committee Member, Hong Kong Society of Audiology
  • Honorary Scientific Officer (Medical), New Territories East Cluster, Hospital Authority
  • Visiting Audiologist, Union Hospital, Hong Kong
  • Director, Executive Committee Member, Hear Talk Foundation, Hong Kong 


Knowledge Transfer

  • Publication and commercialization of the Cantonese Spoken Word Recognition Test (CanSWORT)


Selected Publications

  1. Ng, I. H. Y., Lee, K. Y. S., Lam, J. H. S., van Hasselt, C. A., & Tong, M. C. F. (2016). An application of item response theory and the Rasch model in speech recognition test materials. The American Journal of Audiology, 25(2), 142-152.
  2. Ng, I. H. Y., Lam, J. H. S., & Lee, K. Y. S. (2016). Cantonese spoken word recognition test (1st ed.). Hong Kong: Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong.
  3. Lee, K. Y. S., & Ng, I. H. Y. (2011). The impact of hearing loss on speakers of tonal languages: Insights from long-term studies on Cantonese speakers. In J. P. Dupont (Ed.), Hearing loss: Classification, causes and treatment (pp. 165-188). New York: Nova Medical Books.
  4. Ng, I. H. Y., & Driscoll, C. (2009). Hearing loss and middle ear disorders in children with Down syndrome: The need for screening and surveillance systems. In D. Jelinek, & G. Dvorak (Eds.), Handbook of Down syndrome research (pp. 397-408). New York: Nova Biomedical Books.
  5. Yuen, K. C. P., Ng, I. H. Y., Luk, B. P. K., Chan, S. K. W., Chan, S. C. S., Kwok, I. C. L., . . . Tong, M. C. F. (2008). The development of Cantonese lexical neighborhood test: A pilot study. International Journal of Pediatric Otorhinolaryngology, 72(7), 1121-1129.
  6. Tsui, P. W. Y., McPherson, B., Wong, E. C. M., & Ng, I. H. Y. (2008). Infant hearing screening: Effects of timeline. Clinical Otolaryngology, 33(2), 108-112.
  7. McPherson, B., Lai, S. P. S., Leung, K. K. K., & Ng, I. H. Y. (2007). Hearing loss in Chinese school children with Down syndrome. International Journal of Pediatric Otorhinolaryngology, 71(12), 1905-1915.


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