In this cross-sectional study, we found that ARDA performed well in a clinical screening setting. The sensitivity and specificity for severe NPDR and PDR were high, and the clinically important miss rate was 0%,
Despite the above limitations, we have the strength in qualitative research method-think aloud method, which is commonly used during questionnaire development to determine whether the meaning of a questionnaire item, as interpreted by the questionnaire respondent, is consistent with the questionnaire devel...