Fig. 13
From: Multimodal diagnostics for keratoconus and ectatic corneal diseases: a paradigm shift

Corvis ST Tomographic-Biomechanical Display shows a forme fruste keratoconus (FFKC) in the right eye (OD) and (b)Â subclinical keratoconus (KC) in the left eye (OS) of twin 2. Despite a relatively regular anterior tomographic assessment (top right), note the abnormal tomographic biomechanical index version 2 (TBIv2) values of 0.28 in OD