Examination of the Cornea
The cornea is the clear covering of the front of the eye that bends, or refracts, light rays as they enter the eye. Disease, infection or injury can cause the cornea to swell or become cloudy thus impairing vision.
Corneal exams are important because they can determine whether any distortions exist in this portion of the eye which can affect quality of vision. A computerized test called corneal topography can map out the surface of the cornea, alerting the doctor to the presence of an abnormal shape or curvature characteristic of certain corneal conditions. A corneal exam can provide information about the health of the cornea and is a valuable diagnostic tool prior to a contact lens fitting, cataract surgery, laser vision correction, vision correction procedure or corneal transplant.