Importance of visual evoked potential in amblyopic children

AbstractPurpose To compare responses to VEP of amblyopic and sound eyes in amblyopic children.Methods Observational descriptive study of 65 amblyopic children (ages between 20‐162 months) with pattern reversal VEPs elicited by checkerboard stimuli with large (120’) medium (42’) and small (12’) checks.Results No statistically significant difference was revealed concerning P1 amplitude and latencies for any check sizes between the amblyopic and sound eye of amblyopic children.Conclusion VEP is a very important tool to understand the complex amblyopic mechanism. Although the superior VA of the sound eye, the VEP alterations demonstrate the functional abnormality of the eye considered “good”. More studies are necessary to explain why the sound eye in amblyopic children cannot be considered completely normal therefore, special attention should be paid to amblyopic treatment, as patching can have a negative effect on the sound eye.