Bland-Altman plots of interobserver reproducibility of UBM measurements using Photoshop software by observer 1 and observer 2.

Measurements of anterior chamber area (ACA) (a), posterior chamber area (PCA) (b), iris cross-section area (ICA) (c), and angle recess area (ARA) (d). The difference is observer 2’s measurement minus observer 1’s measurement. The grey dashed line represents regression line of difference between the measurements of observer 1 and observer 2.