Corneal topography is a non-invasive medical imaging technique for mapping the surface curvature of the cornea, the outer structure of the eye.

It is used in the diagnosis and management of various corneal curvature abnormalities and diseases such as:

• Keratoconus, a degenerative condition that causes a thinning of the cornea
• Corneal transplants
• Corneal scars or opacities
• Corneal deformities
• Fitting contact lenses
• Irregular astigmatism following corneal transplantation
• Planning refractive surgery
• Postoperative cataract extraction with acquired astigmatism