Recent research on sensitive periods supports the need for early diagnosis and treatment of visual conditions such as strabismus, amblyopia, and 'high refractive error. Therefore, the optometrist should be equipped with an appropriate test battery to examine infants ages 0-3 years. The authors used a survey to determine the current status of infant testing by optometrists in the United States. A discrepancy was found between recent developments in techniques to measure refractive status and visual acuity, and techniques currently in use. A test battery is presented which should enable the optometrist to expand her/his practice to include infants ages 0-3 years.
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