Possible association between photic sneeze syndrome and migraine and psychological distress.

The low prevalence of PSS identified in the present study may be due to the inadequate ability of the self-report questionnaire to identify PSS. Despite such limitation, the present study suggests that individuals with PSS are more likely to suffer from migraine and psychological distress than those without PSS. PSS may be a potential target for the research of migraine and stress-related disorders.