This research note presents a structured, historically grounded narrative review of eye-tracking research in hospitality and tourism with a focus on digital consumer behavior. Beginning with its origins in psychology and visual cognition, the review traces how eye-tracking evolved into a practical tool for marketing and user-experience studies before becoming integrated into hospitality and tourism research. Prior studies have applied eye-tracking to investigate attention to destination images, hotel and restaurant websites, online booking platforms, and various forms of digital promotional content. Findings consistently show that visual hierarchy, images, prices, ratings, and reviews strongly guide consumer attention and shape online decision-making processes. Eye-tracking has further proven valuable for diagnosing usability problems and informing the design of more intuitive digital interfaces. Synthesizing this literature, the research note highlights key methodological contributions and emerging trends, and identifies future research opportunities related to mobile environments, immersive media, emotional and physiological measures, and more diverse consumer populations. Using a transparent search and screening procedure, this review synthesizes evidence across platforms, eye-tracking metrics, and research designs to (1) map methodological trajectories, (2) summarize dominant themes linking attention to digital choice, and (3) propose an agenda for future work in mobile, immersive, and multi-method measurement contexts.