A Study of a Mobile Phone Application Measuring the Eyes Before and After Medication

The eHealth system Previct Drugs is a CE marked medical device intended to be used in treatment of substance use disorder (SUD) to support and monitor patients' treatment. Previct Drugs consists of a mobile phone application used to perform self-administered eye-scanning, a web-based careportal used by the caregiver, a database for storage, handling, and analysis of reported data, and an admin portal for the manufacturer to register and administer customers. In this study, Previct Drugs will be used by healthy volunteers for performing measurements before and after intake of a commonly used medicine to simulate drug intake.