Investigating eye examination-related anxiety in autistic adults.

The OPAS is a statistically valid tool for use in the autistic adult population. It appears to suggest no significant difference in optometric anxiety between the autistic adult and general population. However, it is possible that it underestimates the true optometric anxiety of autistic adults since the items do not include some of the anxiety provoking factors for this population which have been indicated in previous studies by the research team.