Author's Abstract: A 44 year old housewife presented with non-specific bilateral visual field loss. This visual disability disappeared immediate to pan-spinal manipulation under anesthesia. Later, on review, the presence of a unicular visual defect was detected by quantitative static perimetry. Further examination revealed no pathology in the eye or brain to explain its occurrence, suggesting that is was due to microischemia of the optic nerve.
Intervention and outcome: The unicular scotoma recovered immediate to further spinal manipulation under anesthetic, only to recur on two further occasions, each time to disappear immediate to spinal treatment.
Conclusions: This case history demonstrates that spinal manipulation may dissipate microvascular spasm in the brain: even in branches of the carotid arterial system, which is not directly related to the spine.
Gorman RF. J Manipulative Physiol Ther. 1993 (Sep);16 (7): 481-487