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Peer reviewedSpafford, Carol S.; And Others – Journal of Learning Disabilities, 1995
This study examined relationships among lens color, visual grating, visual detection task performance, and peripheral retinal brightness thresholds among four adults and four children with reading disabilities and age-matched controls. Subjects with reading disabilities displayed significantly lower contrast sensitivity when tested with sine-wave…
Descriptors: Adults, Children, Etiology, Optometry
Peer reviewedFletcher, James; Martinez, George – Journal of Learning Disabilities, 1994
Twenty-two readers (ages 10 to 35) with scotopic sensitivity parsed sentences under scotopic correction (using colored transparent overlays) and control conditions. Although eye movements suggested enhanced parsing, comprehension scores were not significantly improved with correction. (DB)
Descriptors: Adults, Children, Eye Movements, Reading Comprehension
Peer reviewedWinters, Roberta L.; And Others – Journal of Learning Disabilities, 1989
Visual persistence was investigated in adults with and without dyslexia in order to determine whether dyslexic adults demonstrate problems similar to those found in childhood dyslexia. Results showed that sensitivity of dyslexic adults was impaired when parts of a test stimulus were presented to adjacent retinal areas, suggesting that under…
Descriptors: Adults, Comparative Analysis, Dyslexia, Vision Tests
