II. Definition

  1. Orbicularis oculi muscle paralysis
  2. Results in failure of Eyelid closure

III. Causes

  1. CN 7 defect
    1. Bell's Palsy
  2. Severe Exophthalmos
  3. Lid spasm from sympathetic stimulation

IV. Complications

  1. Corneal Injury due to lack of protection, dryness

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