Corneal tomography is a non-invasive medical imaging technique for mapping the surface curvature of the cornea, the outer structure of the eye. This procedure may be carried out with a Pentacam, which uses a rotating camera to create a 3D image of the anterior of the eye. This fourth edition has been fully updated to provide the latest developments in corneal tomography using the Pentacam system. Beginning with an introduction, the following sections cover corneal maps and profiles, corneal refraction, Wavefront analysis, systematic interpretation of corneal tomography, and corneal tomography in ectatic corneal diseases. The book is highly illustrated with colour images, figures and clinical examples. Previous edition (9789386261106) published in 2018. Authored by recognised expert Mazen M Sinjab, this book is the first to: * Establish screening guidelines * Present a new systematic interpretation of corneal tomography * Present a new practical subjective scoring system, the