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  • Title: A comparison of tests to determine acuity deficits in children with amblyopia.
    Author: Geer I, Westall CA.
    Journal: Ophthalmic Physiol Opt; 1996 Sep; 16(5):367-74. PubMed ID: 8944181.
    Abstract:
    The usefulness of the Cardiff Acuity Test in the detection of amblyopia was evaluated. Visual function was measured using pattern visual evoked potentials (VEPs), the Cardiff test, and the Bailey-Lovie Chart in 21 visually normal children and 12 children with amblyopia. The Cardiff test gave higher scores than the Bailey-Lovie test. The Cardiff test identified five of the 12 children who were classified as amblyopic by the Bailey-Lovie test. Interocular VEP latency differences identified eight of the 12 children with amblyopia; interocular VEP amplitudes correctly identified nine. We suggest that the challenging Bailey-Lovie test be used for older children who know their letters well. If the Bailey-Lovie test cannot be used, VEPs give the most accurate assessment of interocular differences. The Cardiff test holds a bored child's attention and allows the examiner to obtain a useful measure of visual acuity, but it cannot detect mild amounts of amblyopia.
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