Figure 1.
Overview of our study design used for model development. A model for gradability assessment was developed (model 1), and then a model for cup-to-disc ratio quantification was generated based on gradable images (model 2). These 2 models were then combined to assess the utility of diagnosing glaucoma in 2 separate cohorts. CDR = cup-to-disc ratio; QC = quality control; UK = United Kingdom.