In the first part of this study, each expert completed 8 clinical cases in which he or she provided a diagnosis of zone, stage, plus, category, management, advanced posterior-ROP, and recommended clinical follow-up. In the second part of the study, experts were presented with the same 8 clinical cases, but were now provided with the corresponding FAs. For each clinical case, the experts were asked to provide a clinical diagnosis and management plan, but were not able to see their previous responses from the first part of the study.