Eagle-eyed Visual Acuity in Autism

o the Editor: We thank Michael Bach and Steven Dakin and David rewther and Alexandra Sutherland for their interesting comentaries with regard to the technical issues associated with use f the Freiberg Visual Acuity and Contrast Test (FrACT) (version .3) (1) in our study (2). We chose the FrACT for use in our study, ecause it is both quick and easy to implement and provides us ith a quantitative measure of visual acuity (VA) that can be eadily interpreted. As outlined in the commentaries, there are a umber of settings within the FrACT that can be changed from heir default values. We agree that any potential influences that hanges to these settings might have on the results should be nvestigated further. In the following, we summarize what these changes from efault were, why they were selected, and the extent to which hese call our results into question.