Fig. 1From: Comparisons of corneal biomechanical and tomographic parameters among thin normal cornea, forme fruste keratoconus, and mild keratoconusCorvis ST parameters measured, first applanation (a), highest concavity (b), second applanation (c). A1DA, corneal deflection amplitude during the first applanation; A1L, length at the first applanation; A1T, time from starting until the first applanation; HCDA, corneal deflection amplitude at the moment of the highest corneal concavity; PD, peak distance at the highest concavity; HCR, central concave curvature at highest concavity; HCDL, highest concavity deflection length; HCT, time from the measurement beginning to the moment of reaching the highest concavity; A2DA, corneal deflection amplitude during the second applanation; A2L, length at the second applanation; A2T, time from starting until the second applanationBack to article page