Subjects and setting
pain
DISEASE
The study participants were patients who came to the hospital for treatment due to various vision problems. The reason for choosing such patients was to exclude the impact of objective factors on the evaluation results, such as physical pain and disease severity. All patients participating in the experiment were treated by the same doctor (doctor Guo) during the peak hours in every Monday morning from August 2021 to March 2022. In this way, the impact of different doctors’ medical skills and service attitudes on the evaluation results of patients can be weakened. The doctor we chose was a general expert and not a specialized expert, because the appointment of a specialized expert is relatively difficult for patients; then the psychological effect of compensation due to the appointment of a specialized expert would make the patients more willing to wait.