Fig. 6From: Tear proteomic profile in three distinct ocular surface diseases: keratoconus, pterygium, and dry eye related to graft-versus-host diseaseHeat map, PCA scores plot, and ROC curve for pterygium group. a Heat map, the colors indicate relative expression levels, with red colors for increased protein levels, and green colors for decreased protein levels. b PCA (principal component analysis) scores plot. c ROC (receiver operating characteristic) curveBack to article page