Vision Loss and Substance Misuse: A Systematic Review

Background: The number of people in the U.S. affected by sensory disabilities and/or substance use has continued to increase, but the relationship between them has yet to be fully understood. The purpose of this review is to assess the relationship between substance use and vision loss in the U.S. as described by current literature. Methods: A search of published literature was conducted across MEDLINE, APA PsycINFO, Web of Science, and EBSCO: Psychology and Behavioral Sciences Collection, and CINAHL following the Preferred Reporting Items for Systematic Reviews and Meta Analysis (PRISMA) protocol. Risk of bias was assessed by the authors based on study design. U.S. based studies written in English between 2010 and 2022 that reported on vision loss and substance use were included. Results: In all, 21 articles were included (case reports 11, case series 1, cross-sectional 4, retrospective cohort 3, review 2) representing 89,132 patients. Nineteen studies found a positive association between vision loss and substance use, with 15 studies suggesting substance use was a risk factor for vision loss. One study reported on vision loss preceding substance use but was inconclusive. Conclusions: Our findings suggest that substance use may be a risk factor for vision loss, and we recommend that providers screen for vision loss in at risk patients to mitigate further disability. Further research is needed to assess the impact visual disabilities may have on substance use, and stronger evidence is needed to verify if substance use is truly a risk factor for vision loss.