Corneal topography is an advanced technology to measure the shape of the cornea. Modern-day topographers can measure thousands of points on the cornea resulting in a ultra-high definition assessment of its profile. Corneal topography measurement is painless and takes less than a minute. As the cornea is the most powerful optical component of the eye, any changes to its shape can adversely affect vision. Advanced computer calculations provide your practitioner with colour coded maps that inform your practitioner about the presence of conditions like keratoconus, where the cornea becomes an irregular shape. Corneal topography is invaluable during complex contact lenses fitting to better align the lens with the shape of the eye. Furthermore, anyone having any form of laser eye surgery such LASIK or PRK will be required to have a topography scan before and after the procedure.