Neuropsych Factors Linked to Light Sensitivity in TBI

Depression and cognition linked to symptom severity and lens response in traumatic brain injury

By
Andrea Surnit
April 28, 2026
3 min

Conexiant

Objective:

To investigate the relationship between neuropsychological factors and light sensitivity in patients with traumatic brain injury (TBI), highlighting its clinical significance.

Key Findings:

TBI patients exhibited greater light sensitivity than controls (1.5 vs 2.4 log lux).
Higher pain catastrophizing scores correlated with lower baseline light sensitivity thresholds.
Higher depression scores were linked to lower thresholds under both lens conditions.
Lower cognitive performance was associated with increased light sensitivity.
Patients with higher depression scores had reduced odds of benefiting from tinted lenses (odds ratio, 0.83 for both lens types).

Interpretation:

The study highlights a complex interplay between neuropsychological factors and visual symptoms in TBI patients, indicating that psychological status influences both light sensitivity and treatment response, suggesting potential clinical applications.

Limitations:

Cross-sectional design limits causal inference.
Modest sample size may affect generalizability.
Psychological measures were self-reported, potentially introducing bias.
Not all relevant psychological conditions, such as anxiety or post-traumatic stress disorder, were assessed.
Only two lens types were evaluated.

Conclusion:

Neuropsychological factors significantly impact visual photosensitivity and treatment efficacy in TBI patients, suggesting the need for targeted interventions addressing these factors.