Summary
This study demonstrates that dynamic pupillometry can objectively identify neurological dysfunction in mild traumatic brain injury patients through measurable changes in the pupillary light reflex, including delayed, slowed, and reduced responses. For lighting designers and healthcare environments serving mTBI patients, these findings highlight the importance of accommodating photosensitivity, as pupillary parameters can distinguish between those with and without light sensitivity.
Key Findings
- Pupillary responsivity in mTBI patients was significantly delayed, slowed, and reduced compared to normal controls, though responses remained symmetrical between eyes.
- mTBI patients exhibited a smaller baseline pupil diameter compared to neurologically normal individuals.
- Several dynamic pupillometry parameters successfully discriminated between mTBI patients with versus without photosensitivity, establishing pupillometry as a viable objective biomarker tool.
Categories
Eye Health & Vision: Investigates pupillary light reflex abnormalities as objective biomarkers for mTBI and photosensitivity.
The Science of Light: Examines dynamic pupillometry parameters including latency, speed, and amplitude of the pupillary light reflex in a clinical population.
Author(s)
KJ Ciuffreda, NR Joshi, JQ Truong
Publication Year
2017
Number of Citations
77
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