The state of Illinois requires all children beginning kindergarten to have a comprehensive eye examination prior to starting school. A child's vision is essential to the development of fine motor skills and the ability to learn. conditions such as uncorrected prescriptions, muscle imbalances, amblyopia (lazy eye), and visual processing disorders can put a child behind. often times a child's lack of participation in the classroom can be the result of poor vision and is instead mis-labeled as a learning disability or behavioral disorder. appropriate vision testing at an early age is vital to insure your child has the visual skills necessary to perform well in school.