Figure 1.

Example of a topographic pattern for a patient in the (A) normal subject group, (B) suspect keratoconus subject group, (C) keratoconus subject group (grade I according Amsler Krumeich or A0 B0 C2 according Belin classification), and (D) keratoconus subject group (grade II according Amsler Krumeich or A2 B3 C2 according Belin classification). The keratoconus summary uses curvature (anterior and posterior), elevation (anterior and posterior) and thickness (epithelial, stromal and corneal) data to facilitate the clinician in the disease diagnosis.