Effects of education via video and model on knowledge and post-operative self-care behavior among patients undergoing cataract surgery at a Mobile Medical Unit

Abstract

          The aim of this quasi-experimental study was to compare the effects of education via video and model with via pamphlet on knowledge and self-care behavior undergone cataract surgery at a Mobile Medical Unit (MMU). Sample of this study was selected by a convenience sampling assignment into experiment and control groups, respectively. Sample size was 36 patients/group calculated by power analysis. The experimental group received education via video and model while control group got education via pamphlet. Data were collected by questionnaires including demographics, knowledge, and the post-operative self-care behaviors with two times: pre and a month –post-surgery. All questionnaires were validated by 5 experts. The reliability of the post-operative self-care behavior questionnaire was tested using Cronbach’s alpha coefficient (a= 0.7). Data analyses were descriptive statistics and Multivariate Analysis of Variance with post-hoc.     

                The results demonstrated that the mean of knowledge difference between pre and post education and self-care behavior post-surgery were significant difference between control and experimental groups, p<0.001 (F_(2,69) = 8.05 ; Wilk's Λ = 0.81, partial η² = .19) and Post-hoc analysis demonstrated that experimental group had significantly higher pre-post  knowledge difference and better self-care behavior than control group (F_{(1, 70)} = 14.15; p< .001; partial η² = .17) และ(F_{(1, 70)} = 4.38; p< .05; partial η² = .06, respectively)

                The findings of this study demonstrated that nurses should educate patients undergoing cataract surgery at MMU through video and model at MMU in order to decrease limitation of reading and repeatedly watch on surgical day.