Objectives: To appraise the existing literature reporting an association between retinal markers and cognitive impairment in adults aged 65 years and over and to provide directions for future use of retinal scanning as a potential tool for dementia diagnosis.
Design: Systematic review of peer-reviewed empirical articles investigating the association of retinal markers in assessing cognitive impairment.
Data Sources: Three electronic databases, Medline, PsycINFO and EMBASE were searched from inception until March 2022.