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  • Title: Vision tests as predictors of learning disabilities.
    Author: Sassoon HF, Davis M, O'Connell EM.
    Journal: J Am Optom Assoc; 1977 Jan; 48(1):49-55. PubMed ID: 845385.
    Abstract:
    Three relatively new screeening tests for visual problems are described. They are color matching, visual language field development, and the speed of the visual language field development, and the speed of the visual scan. The visual problems so measured were found to be associated with poor school achievement. In color matching, only blue was involved, not red or green, and proficiency was relatively undeveloped before age 10. Throughout, blue matching difficulty was associated with poor visual language field development, but not with slow scanning. Early screening with these tests offers possibilities for early detection of students with potential learning problems.
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