The pupil diameter, controlled by sympathetic and parasympathetic innervation, is a direct reflection of autonomic nervous system (ANS) activity. This study aims to investigate the clinical feasibility of using pupillary activity measured with a cost-effective eye tracker as a measure of ANS function in people under chiropractic care. Computerised pupillometry is a low cost, non-invasive objective measure that could potentially be a useful outcome measure for chiropractors in practice to assess nervous system function in their patients.
Grant Value: $9,976
Chief Investigator: Dr Imran Amjad – New Zealand College of Chiropractic
Status: Completed
Researcher updates:
- April 2026
Manuscript is in the process of being drafted ready for submission. - August 2025
Data collection is now complete, and the analysis is being finalised. Now in the process of preparing the abstract and manuscript for a conference submission and publication. Completion estimated early 2026. - July 2024
Data collection took a little longer, but it has now been completed and is currently being analysed. Estimated completion date is mid 2025. - July 2023
Data collection has commenced and should be gathered by the end of 2023.