The Trigeminal nerve supplies sensory innervation to the cornea. The Trigeminal nerves are accompanied by parasympathetic and sympathetic nerves from the pterygopalatine or sphenopalatine ganglion. This is a discussion of a newly found connection. This is an interesting abstract I recently found that helps explain why SPG Blocks are effective for eye pain: Am J Rhinol Allergy. 2011 Jan-Feb;25(1):50-3. doi: … Continue reading Why Sphenopalatine Ganglion Blocks are Effective for Eye Pain.
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