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CN 7, as we know, controls aqueous tear production and blinking. impaired in CN7 function results in inability to blink and lower lids ectropion.

 

CN 7, as we know, innervates teh obicularis oculir and the lacrimal gland. impaired in CN7 function results in inability to blink as well as decrease aqueous tear production, thus causing both dry eye and exposure keratopathy

 

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haber