The most frequent reason for failure of amblyopia therapy is non-compliance.Other factors include age at time of treatment, severity of amblyopia and associated ocular conditions.
Since many affected children are asymptomatic, early detection of abnormal visual function requires effective screening throughout early childhood.
Special considerations apply to screening examinations of children born prematurely.
The visual system at birth is functional but very limited.
Normal visual development is rapid during the first six months of life and continues through the first decade.
Young children are uniquely sensitive to conditions that interfere with vision and visual development.