The corneal imaging is a fast advancing field and topography is an essential part of every cornea practice. The placido disk imaging has the longest track record in ophthalmology and optometry, this act similar to keratometer. With the help of 3D corneal topography it was easier to obtain not only the image of anterior cornea but also provides information about the posterior cornea. Topography is the most important diagnostic tool in detecting, treating and monitoring keratoconus (KC) and similar corneal conditions. There are many methods to screen and image the cornea to provide the practitioner with the needed information to make quality decisions regarding patient care. Thus the chapter discusses in detail about various types of corneal topography instruments along with their images.