Vision Screening Online Training Program
Module 4 (continued): Binocular Fix and Follow/Extra Ocular Movement (EOM)
(C&TC: Often performed by the health care provider)
The binocular fix and follow test is a great test to see if a child's eyes work together and are symmetric in their ability to follow an object. It is important to keep the child's head staring straight ahead for this test so only the child's eyes move to follow the object. This will give the screener the best vantage point to observe any deviation in the child's eye movements.
|Ages:||4 months through 3 years or when visual acuity can be measured.|
|Description:||Target is moved horizontally, then vertically, then obliquely in relation to a center point on a visual axis of each eye. Make sure the child's head does not move; the parent can help steady the child.|
|Equipment:||Penlight or interesting target.|
Image of all fields of Extra Ocular Movements
|Pass:||Both eyes follow the target easily and smoothly.
Occasional Crossing: Normal at 2 months of age. Recheck at 4 month visit.
Fixed Crossing: Refer
|Re-screen/Refer:||Eyes do not follow in unison or movements are jerky, uneven, or "break" further than 4 inches from the bridge of the nose, or child uses head movements. Eye crossing is fixed and/or intermittent.|
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