Corneal Topography

Corneal topography is a non-invasive medical imaging technique for mapping the surface curvature of the cornea — the clear, dome-shaped front window of the eye. Since the cornea is responsible for approximately 70 percent of the eye's focusing power, its shape is critically important to your vision. Corneal topography produces a detailed, color-coded map of the cornea's surface, revealing even subtle irregularities that cannot be detected with conventional testing.

The procedure is quick and completely painless. You simply sit in front of the topography machine and rest your chin on a support. The device projects a series of illuminated rings onto your cornea, and a camera captures how these rings are reflected. A computer then analyzes this data to create a detailed three-dimensional map of your corneal surface. The entire process takes only a few minutes per eye and requires no touching of the eye or use of eye drops in most cases.

Corneal topography is essential for diagnosing and monitoring keratoconus, a progressive condition where the cornea thins and bulges into a cone shape. It is also used to evaluate corneal astigmatism, fit contact lenses (especially for patients with irregular corneas), assess corneal scars and opacities, and evaluate the effects of corneal transplant surgery. The test can detect early signs of corneal abnormalities before they affect vision significantly.

At International Eye Hospital, our advanced corneal topography system provides the precision needed for accurate diagnosis, customized contact lens fitting, and safe surgical planning, ensuring the best possible outcomes for your vision.