Keratoconus: current aspects of diagnosis and classification

Keratoconus (KC) is a progressive non-inflammatory ectatic corneal disease typified by thinning and conical protrusion, as well irregular astigmatism with varying-degree visual impairment. A literature review on the epidemiology, classification diagnosis presented. Current clinical practice most commonly relies Krumeich’s adaptation of ABCD grading system M. Belin Amsler. The KC requires comprehensive approach that integrates variety methods. Scheimpflug imaging biochemistry assessment performed Pentacam Oculus keratotomograph in combination Corvis ST device. result expressed diagnostic indices, CBI (Corvis Biomechanical Index), BAD-D (Belin/Ambrósio Enhanced Ectasia Index total deviation) TBI (Tomographic Index). use optical coherence tomography necessary to perform epithelial thickness mapping pachymetry rule out hidden stromal thinning.