Intermittent Exotropia Office Control Score

Adapted from Mohoney BG. Holmes JM. An office-based scale for assessing control in intermittent exotropia. Strabismus 2006;14:147-150

• Observe the child for 30 seconds when fixating at distance object
  • if exotropia noted score will be 5, 4 or 3.
  • Repeat observation with near fixation target for 30 seconds.
• If no deviation noted above place occluder over right eye for 10 seconds then observe for 10 seconds, repeat by occluding the left eye with distance fixation.
  • Occlude for another 10 seconds the eye that took the longest to re-fuse and then observe.
  • Repeat with near fixation.
• Record the worst level of control noted
• This test should be done before any dissociation or patching or at least 10 minutes after any dissociation.