What is the cause of tear flow in patients with Bell palsy (idiopathic facial paralysis) (IFP)?

Updated: Jun 14, 2019
  • Author: Danette C Taylor, DO, MS, FACN; Chief Editor: Selim R Benbadis, MD  more...
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Answer

Two thirds of patients complain about tear flow. [10] This results from the reduced function of the orbicularis oculi in transporting the tears. Fewer tears arrive at the lacrimal sac, and overflow occurs. The production of tears is not accelerated.


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