Frequency of Eye Deviation in Stroke and Non-stroke Patients Undergoing Head CT

Neurocritical Care , 05/14/2012

Conjugate eye deviation (CED) is common in patients with acute stroke. Such deviation may be seen in non–stroke patients, but less commonly and with lesser degrees of deviation.


  • Three groups of patients were identified retrospectively: emergency department (ED)/inpatients undergoing head CT for non–stroke symptoms (Group 1), stroke patients receiving intravenous tPA (Group 2), and stroke patients undergoing intra–arterial therapy (Group 3).
  • The presence on head CT of CED, lone eye deviation (LED), and skew deviation (SD) and the angle of deviation were recorded.
  • The NIHSS score was recorded for Groups 2 and 3.


  • CED was present in 17 (14 %) of 120 Group 1 patients, 17 (36 %) of 47 Group 2 patients, and 28 (50 %) of 56 Group 3 patients (p<0.0001).
  • Mean deviation of CED in Groups 1, 2, and 3 was 19o (range 7–36o), 25o (range 6–67o), and 27o (range 11–56o), respectively (p=0.024).
  • LED was seen in 42 (35 %) of Group 1, 7 (15 %) of Group 2, and 2 (4 %) of Group 3 patients (p<0.0001).
  • There was no significant difference in SD among groups (p=0.37).
  • CED was associated with a higher National Institutes of Health Stroke Scale (NIHSS) score among stroke patients (p=0.0008).

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