Corneal topography is a non-invasive medical imaging technique for mapping the outer structure of the eye. It is a computer assisted diagnostic tool that creates a three-dimensional map of the surface curvature of the cornea. Corneal topography produces a detailed, visual description of the shape and power of the cornea. This type of analysis provides your doctor with very fine details regarding the condition of the corneal surface. These details are used to diagnose, monitor, and treat various eye conditions. They are also used for planning laser vision correction or fitting contact lenses.