The Normal Cornea vs. Keratoconus

Below is a diagram of the cornea in its normal shape and form.

The earliest symptom of Keratoconus is subtle blurring of vision that is not correctable with glasses. (Vision is generally correctable to 20/20 with gas-permeable contact lenses.)

Keratoconus can usually be diagnosed with slit-lamp examination of the cornea. Early cases may require corneal topography, a test that involves making a stereo image that gives a topographic map of the curvature of the cornea. When keratoconus is advanced, the cornea may be thinner in areas. This can be measured with a painless test called pachymetry.

The diagrams below illustrate the difference between a normal cornea and a keratonic cornea.

Dr. Quawasmi has used his new procedure to treat mild cases to the most severe of cases of Keratoconus. Future blog entries will explain Dr. Quawasmi's procedure.