The article describes the expansion of deep learning in clinical practice across three distinctly different settings in India, Thailand, and Australia. This project enabled screening of over one million patients using artificial intelligence. The expansion of a successful deep learning tool from a single hospital to a global scale provided valuable insights. The study was published in Nature Medicine in September 2026. The insights gained can inform future expansion of healthcare artificial intelligence worldwide. The article focuses on practical lessons and experiences from implementing AI in various healthcare systems.