Online performance and interface design implications among older adults: A systematic review of eye tracking studies

Eye tracking is a valuable tool for studying the online performance of older adults, but no review has systematically synthesised findings based on eye tracking data. This study fills that gap by conducting a systematic review of 14 relevant journal articles. It categorises and compares online performance in terms of viewing and interaction performance. Design implications are synthesised across icon design, image and text design, interaction design, and layout design. Findings suggest that older adults' online performance is influenced by various factors, as evidenced by the heterogeneous results across studies. This highlights the importance of considering perceived usefulness and ease of use in eye-tracking experiments and accounting for a range of factors affecting older adults. While most studies focus on individual design elements, future research should propose context-based design suggestions to address the holistic needs of older adults, thereby advancing the field with more comprehensive age-friendly design strategies.