1. Components of Visual-Motor Function in a Normal Young Adult
This video presents the eye movement patterns of a normal young adult, following the format of the EDVA-S (Erhardt Developmental Vision Assessment short screening form).

2. Atypical Visual-Motor Function in Persons with Developmental Disabilities
This video presents examples of 12 children and adults with cerebral palsy, multiple handicaps, and developmental disabilities, who were evaluated with the EDVA©. Their eye movement patterns, which show missing reflexive and voluntary motor components below the mature 6-month level, are related to their physical, medical, and optical diagnoses.