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  • Title: Clinical assessment of the PL 20/20 Infant Vision Tester.
    Author: Stebbins AL.
    Journal: J Am Optom Assoc; 1986 Jun; 57(6):466-9. PubMed ID: 3722694.
    Abstract:
    Infant visual acuities have been a difficult measurement to obtain for a number of reasons. This study evaluates the clinical usefulness of the Infant Vision Tester, a new preferential-looking instrument. Twenty-eight infants from age 2 months to 22 months were followed on a bi-monthly basis and their visual acuities were measured. It was found that the practicing optometrist can predict approximate visual acuities and progression of acuity improvement from one age group to another. A number of helpful suggestions for proper testing environment are also suggested by the investigator.
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