Background <p>To analyze the global scientific output, research trends, and thematic evolution related to choroidal thickness and choroidal vascularity index (CVI) using bibliometric methods and science mapping.</p> Methods <p>This bibliometric study analyzed research outputs on choroidal thickness and CVI retrieved from in the Web of Science database from 1990 up to 2025. The Science Mapping Analysis Tool (SciMAT) was used to visualize thematic structures and predict research trends in this field.</p> Results <p>The annual distribution of publications showed a marked increase in research output starting from 2010, with the highest number of publications observed in 2021 (n = 174). Turkey was the most productive country in this field (n = 411). The total number of citations was 41,929, with an average of 25.46 citations per publication. The most prolific author was Chhablani J (n = 29), while "Optical Coherence Tomography" was identified as the most frequently used keyword.</p> Conclusions <p>The growing body of literature on choroidal thickness and CVI reflects increasing interest in their clinical and research significance. This study not only identifies key contributors and trends but also reveals the thematic evolution and emerging research areas in the field. These insights may help researchers better understand the current landscape and guide future investigations.</p>