Corneal topography 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 second edition has been fully updated to provide the latest developments in corneal topography and tomography using the Pentacam machine. Beginning with an introduction, the following sections describe the fundamentals of corneal topography and use of the Pentacam with different ophthalmic disorders. With nearly 250 high quality, colour images and illustrations, this concise guide is especially useful to graduate and postgraduate students in learning how to read and interpret corneal topography.