Ophthalmology Book


Orbicularis Paralysis

Aka: Orbicularis Paralysis, Eyelid Closure Defect
  1. See Also
    1. Ptosis
    2. Bell's Palsy
  2. Definitions
    1. Orbicularis Paralysis
      1. Orbicularis Oculi Muscle paralysis
      2. Results in failure of Eyelid closure
  3. Causes
    1. CN 7 defect
      1. Bell's Palsy
    2. Severe Exophthalmos
    3. Lid spasm from sympathetic stimulation
  4. Complications
    1. Corneal Injury due to lack of protection, dryness

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