6.4 Exotropia Differential Diagnoses

  1. Intermittent XT
  2. Constant


  1. Decompensated intermittent
  2. Sensory
  3. Consecutive
  4. Convergence insufficiency (XT for near) & paralysis


  1. CNIII palsy
  2. Restriction (TED, medial wall blowout, myositis)
  3. Duane (II)
  4. Crouzons

+ Myasthenia gravis


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