AIM:To investigate the changes of retinal microcirculation after phacoemulsification and the influencing factors of visual acuity.METHODS: Retrospective analysis. A total of 264 cataract patients(264 eyes)who underwent phacoemulsification in our hospital from January 2022 to December 2022 were selected as the study objects. Patients were divided into < 0.3 group(66 eyes)and ≥0.3 group(198 eyes)according to the recovery of best corrected visual acuity(BCVA)at 3 mo after surgery. The changes of retinal microcirculation indexes were compared before and after treatment. Logistic regression and LASSO regression models were used to screen the influencing factors of postoperative BCVA. A nomogram prediction model of postoperative BCVA was constructed and verified. A restricted cubic spline Logistic regression model was established to analyze the dose-response relationship between end-diastolic velocity(EDV), peak systolic velocity(PSV)and the risk of BCVA recovery.RESULTS: At 3 mo postoperatively, EDV and PSV were significantly improved compared with those before treatment, and resistance index(RI)levels were significantly lower than those before treatment(all P<0.05). Preoperative EDV, PSV, aqueous humor cell grade, fundus lesion grade, advanced age and Emery grade were influencing factors for poor BCVA recovery after phacoemulsification in cataract patients(P<0.05). The AUC before and after validation of the nomogram model by Bootstrap method were 0.869(95%CI: 0.815-0.903)and 0.866(95%CI: 0.802-0.895), respectively. The sensitivity was 88.36% and 88.27%, and the specificity was 91.82% and 91.78%, respectively. Restricted cubic spline model analysis showed no nonlinear dose-response relationship between EDV and PSV levels and the risk of poor BCVA recovery in either male or female(P>0.05).CONCLUSION: After phacoemulsification, retinal microcirculation in cataract patients improved significantly. EDV, PSV, aqueous humor cell grade, fundus lesion grade, advanced age and Emery grade are all factors influencing poor BCVA recovery after cataract surgery.

ObjectiveTo explore the potential influencing factors and complex pathways affecting rehabilitation effect for children with autism spectrum disorder (ASD) from the perspective of parental efficacy in doctor-patient communication, and to provide evidence for improving the quality of rehabilitation service for children with ASD. MethodsAn anonymous face-to-face questionnaire survey was conducted to collect general demographic information of parents of children with ASD at designated rehabilitation institutions in Gansu province. The data included parental efficacy in doctor-patient communication, parental compliance of treatment and children's rehabilitation outcomes were collected. A structural equation model was used to explore the impact mechanism of parental communication efficacy on the rehabilitation outcomes of children with ASD. ResultsData from 519 parents at 37 rehabilitation institutions across 13 cities/counties in Gansu province were collected. Significant positive correlations were found between parental efficacy in doctor-patient communication, doctor-patient relationships, parental compliance with treatment and rehabilitation outcomes for children with ASD (P < 0.05). Through structural equation model analysis, the standardized direct effect of children with ASD from parents' doctor-patient communication efficacy was 0.151 (P = 0.023). The mediating effect of doctor-patient relationship and parental compliance with treatment were 0.160 (P = 0.001) and 0.111 (P = 0.001), respectively, with a chained mediating effect of 0.035 (P = 0.001). The pathway "parental efficacy in doctor-patient communication → doctor-patient relationship → ASD child's rehabilitation outcome" accounted for the highest proportion of the total mediating effect, at 52.29%. ConclusionParental doctor-patient communication efficacy may positively impact on the rehabilitation outcomes of children with ASD directly, and indirectly through the doctor-patient relationship and parental compliance with treatment. Rehabilitation institutions should focus on fostering parental communication skills and enhancing high-quality and humanized rehabilitation services.