Summary
This case report describes a patient with profound near-vision instability after mild traumatic brain injury, linked to structural lesions in the pulvinar, pretectum, and rostral superior colliculus. While not directly about lighting design, the findings have implications for understanding photosensitivity and visual discomfort in TBI patients who may require tailored lighting environments.
Key Findings
- A structural MRI lesion in the rostral superior colliculus, pretectum, and caudal thalamic pulvinar was associated with inability to maintain convergence and accommodation following mild TBI.
- The rostral superior colliculus is proposed to participate in vergence holding via anatomic connections with the central mesencephalic reticular formation and C-group medial rectus motoneurons projecting to nontwitch extraocular muscle fibers specialized for tonic, fatigue-resistant activity.
- Convergence and accommodation deficits are described as common following traumatic brain injury, including mild TBI, though supranuclear control mechanisms were previously incompletely understood.
Categories
Eye Health & Vision: The paper examines convergence and accommodation deficits following traumatic brain injury, directly relevant to visual function and eye movement control.
Author(s)
C Fritts-Davis
Publication Year
2023
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