Vision-related Quality of Life in Patients With Glaucoma: the Role of Illness Perceptions
Abstract Purpose: To explore the predictive effect of illness perceptions on vision-related quality of life (VRQoL) in Chinese glaucoma patients.Methods: In this cross-sectional study, 97 patients with glaucoma completed the Brief Illness Perception Questionnaire (BIPQ), the Glaucoma Quality of Life-15 (GQL-15), and a questionnaire with sociodemographic and clinical information. Correlation analysis and hierarchical linear regression analysis were performed.Results: The BIPQ total score was positively correlated with the scores of the total GQL-15 and its four dimensions. Chronic comorbidities, type of glaucoma, best-corrected visual acuity (BCVA), mean defect (MD) of visual field in the better eye, and identity in the BIPQ were the critical predictors of VRQoL. Illness perceptions independently accounted for 7.8% of the variance in the VRQoL of glaucoma patients.Conclusions: Patients with stronger illness perceptions who perceive themselves as having more glaucoma symptoms are likely to experience worse VRQoL. Illness perceptions in glaucoma patients deserve clinical attention, and further studies are needed to examine whether cognitive interventions targeting illness perceptions can improve VRQoL.