Background: The ocular motor system is complex and dependent on the cooperation of many different areas of the brain. Ocular motor functions may be disturbed by various factors resulting in strabismus, and abnormal fixational behaviour, which may interfere on a multitude of visual functions. To study binocular functions orthoptic methods may be used and when studying visual fixation eye-tracker...

In the present study we compared the ability of commonly used diagnostic criteria for CI to discriminate between symptomatic pediatric patients and normal controls with corresponding sensitivity and specificity parameters of a novel test of Near Point of Fixation Disparity (NPFD) and a measure of Associated Positive Fusional Convergence (APFC). The results yielded 95% sensitivity and 100% speci...