• 1121 Citations
  • 18 h-Index

Research output per year

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Personal profile

Public Profile

Dr Jyoti Khadka is a research fellow in the ROSA, South Australian Health and Medical Research Institute. He is also a research fellow in the Institute for Choice, School of Business, University of South Australia. Dr Khadka was originally trained as an optometrist. He was awarded a PhD at Cardiff University in the UK, followed by a Post-doctoral fellowship at Flinders University in Australia.  His main areas of research interests and expertise are in healthy ageing, patient-reported outcomes and the application of modern psychometric methods, including item response theory (IRT) and Rasch analysis, to develop, validate and implement quality of life assessment instruments. His work has explored the application of Rasch analysis (a modern psychometric method) in developing and validating optimal new against existing legacy quality of life instruments. He has published over 45 peer reviewed research publications in patient-reported outcomes and application of Rasch analysis. His other research interests includes exploring ways to improve the quality of both preference and non-preference based instruments to measure and value health and quality of life outcomes in children and adults for health economics evaluations across the health, aged care and social care sectors.

Education/Academic qualification

PhD, Cardiff University

External positions

Visiting Professor , Wenzhou Medical University

1 May 1800 → …

University of South Australia


  • RE Ophthalmology
  • Patient-reported Outcome Measures
  • Quality of Life
  • Psychometrics
  • Health Economics
  • Healthy Ageing
  • Rasch analysis
  • Eye health
  • Optometry
  • Ophthalmology
  • Computer adaptive testing system

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Research Output

  • 1121 Citations
  • 18 h-Index
  • 49 Article
  • 8 Letter
  • 7 Review article

Optimizing measurement of vision-related quality of life: a computerized adaptive test for the impact of vision impairment questionnaire (IVI-CAT)

Fenwick, E. K., Loe, B. S., Khadka, J., Man, R. E. K., Rees, G. & Lamoureux, E. L., 1 Mar 2020, In : Quality of Life Research. 29, 3, p. 765-774 10 p.

Research output: Contribution to journalArticle

A Review of the Development and Application of Generic Preference-Based Instruments with the Older Population

Cleland, J., Hutchinson, C., Khadka, J., Milte, R. & Ratcliffe, J., 12 Sep 2019, In : Applied Health Economics and Health Policy. 17, 6, p. 781-801 21 p.

Research output: Contribution to journalReview article

Development and Psychometric Assessment of Novel Item Banks for Hereditary Retinal Diseases

Prem Senthil, M., Khadka, J., De Roach, J., Lamey, T., McLaren, T., Campbell, I., Fenwick, E. K., Lamoureux, E. L. & Pesudovs, K., 1 Jan 2019, In : Optometry and Vision Science. 96, 1, p. 27-34 8 p.

Research output: Contribution to journalArticle

Functional limitations recognised by adults with amblyopia and strabismus in daily life: a qualitative exploration

Kumaran, S. E., Khadka, J., Baker, R. & Pesudovs, K., 1 May 2019, In : Ophthalmic and Physiological Optics. 39, 3, p. 131-140 10 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Identification and Evaluation of Items for Vitreoretinal Diseases Quality of Life Item Banks

Prem Senthil, M., Fenwick, E. K., Lamoureux, E., Khadka, J. & Pesudovs, K., 2 Nov 2019, In : Ophthalmic Epidemiology. 26, 6, p. 448-458 11 p.

Research output: Contribution to journalArticle


SAHMRI Research Translation Award

Maria Stanford (Recipient), Sarah Bray (Recipient), Catherine Lang (Recipient), Jyoti Khadka (Recipient), Robert Jorissen (Recipient), Max Moldovan (Recipient), Azmeraw Amare (Recipient), Janet Sluggett (Recipient), Monica Cations (Recipient), Gillian Caughey (Recipient) & Tiffany Gill (Recipient), 13 Dec 2019