Research on Interface Design of Elderly-Friendly Medical APP under the Perspective of Scene Fusion

With the advancement of smart elderly care policies and the growing demand for digital health management among older adults, the need for accessible healthcare solutions is becoming increasingly urgent. Age-friendly medical applications play a pivotal role in bridging elderly users with healthcare services; however, existing designs still suffer from limitations such as small font sizes, low color contrast, insufficient voice guidance, and a lack of scenario-specific functions. This study reviews relevant policies and theoretical foundations, analyzes the needs of elderly users based on survey data, and develops a functional framework to address these deficiencies. It proposes physiology-informed visual strategies, habit-oriented interaction optimizations, and a closed-loop service model that integrates health monitoring with medical services to support multimodal information delivery and one-click operations. The findings expand the application of age-friendly design principles in healthcare, provide empirical support for scenario-integrated approaches, and offer practical recommendations to enhance app usability and user engagement, thereby promoting effective health management for older adults and advancing the inclusive, human-centered development of the smart elderly care ecosystem.