The videos below discuss the use of the 10' LEA symbols chart and the Random Dot E (RDE) Stereopsis Test.  When using this equipment, vision screening requirements and referral criteria differ in the State of Ohio. Everyone should watch Chapter One, Chapter Two and Chapter Three. 

Only view Chapter Four if you are conducting vision screenings in a preschool, school or public health setting. All three chapters are applicable to screening in these settings and all should be viewed so that you understand all of the steps to a preschool vision screening.

 

Only view Chapter Five if you are conducting vision screenings in a pediatric office or primary care setting. All three chapters are applicable to screening in these settings and all should be viewed so that you understand all of the steps to a preschool vision screening.