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  • Left image courtesy of John W. Simon, MD; right image courtesy of Lee R. Hunter, MD.
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    Pediatric Ophth/Strabismus

    Teller Acuity Cards can be used to measure visual acuity in a preverbal child. If the pattern is visible to the child, the child looks toward the grating; otherwise, the stripes blend into the gray background and the child shows no preference for looking toward the side of the card with the grating.