Corneal Topography

Corneal topography is the measurement of corneal curvature assisted by computer analysis. Wavefront Aberrometry is a measure of how accurately light passes through the optical system of our eyes. The eye’s optical system includes the cornea, the internal lens as well as the fluids inside the eye.

Our advanced technologies allow us to measure these items and if an irregularity is detected the doctors can determine the best strategy for vision correction. We are able to view the irregularities in Total or separate out the Corneal and the Internal contributors. This allows us to determine the source of the optical irregularity.

This information helps in diagnosing corneal diseases such as keratoconus as well as in defining areas of corneal distortion seen in cases of ocular injury or past surgeries. Internal distortions in many cases show up well before a clinical cataract is diagnosed. This diagnostic procedure is also essential for patients being considered for refractive surgical procedures (such as LASIK or PRK).

Below is a sample print out of a normal topography scan used for evaluating the regularity of the cornea.  The eye chart on the upper right represents the patients vision when fully corrected.

Below is a sample of a normal contact lens evaluation. The image displays the required orientation of a toric contact lens.

Below is a sample wavefront aberration printout. The image on the upper left represents how a single light spot is scattered by the optical components of the eye. The eye chart on the upper left is a representation of the patient’s best-corrected vision with glasses.