Epiphora and Hyperlacrimation as Paradoxical Manifestations of Facial Nerve Injury: Mechanistic Insights
Cadynce Peltzer,
Shreya Bhatt,
Irene Kamel
et al.
Abstract:The incidence of facial nerve paralysis is approximately 30 per 100,000 persons annually. Although it is often idiopathic, as in Bell's palsy, it can also result from infections, trauma, or neoplasms. Facial nerve paralysis may present with partial or total facial paresis, lagophthalmos, denervation of the lacrimal gland, and other ocular abnormalities. While dry eye is a commonly expected outcome of facial nerve injury, some patients may paradoxically experience epiphora and hyperlacrimation. In this review, … Show more
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