• 25% of all school children in the U.S. have a vision problem significant enough to affect learning.  Vision and Learning, American Foundation for Vision Awareness. June 1, 2002

• 70% of juvenile delinquents have uncorrected vision problems. Harris, Paul - The Prevalence of Visual Conditions in a Population of Juvenile Delinquents Optometric Extension Program

• 74% of illiterate adults fail the vision screening. Pacific University College of Optometry

• 53% of children of families living in poverty have uncorrected vision problems that interfere with reading, writing, and classroom learning.   

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Gillespie, Kathleen - How Vision Impacts Literacy: An Educational Problem that Can Be Solved. Harvard School of Education, 2001

• Poor concentration or a short attention span
• Fatigue
• Squinting
• Complaints of seeing double
• Complaints of blurry vision
• Losing his/her place while reading
• Pointing to words while reading
• Avoiding close work
• Rubbing  his/her eyes or blinking a lot while reading
• Nausea, dizziness, or headaches after close work