Inclusion Criteria:  Child assent and parent/guardian consent 8-10 years of age No lutein supplementation within 6-months prior to enrollment (exception of multivitamins containing less than 1 mg lutein/day) Absence of learning disability (parent-reported) Tanner scale score ≤ 2 20/20 or corrected vision  Exclusion Criteria:  Non-assent of child or non-consent of guardian Above/below 8-10 years of age Lutein supplementation within 6-months prior to enrollment (including multivitamins containing more than 1 mg lutein/day) Identified learning disability (parent-reported) Tanner scale score > 2 Not 20/20 or uncorrected vision