Corneas of IL-1R−/− mice show reduced GalNAz labeling compared to WT and MyD88−/− mice. A) WT mouse corneas were labeled with GalNAz as previously described (left), then analyzed using combination of fluorescence intensity, object shape, and segmentation with CellProfiler software to generate pattern of GalNAz-labeled cells (center) and distinguish those cells independently of cell-to-cell heterogeneity in fluorescence intensity (right). B) Eyes from MyD88−/− mice (left) looked similar to WT, whereas IL-1R−/− mouse corneas showed disrupted (patchy) mucin labeling (center). WT corneas blotted before Ac4GalNAz exposure showed little or no labeling (right). Representative processed images with cell outlines are shown. In total, 8 WT, 6 MyD88−/−, 7 IL-1R−/−, and 4 blotted corneas were analyzed (Fig. 8).