Is It True That Patients Who Develop Keratoconus After LASIK Always Had Keratoconus?

Patients who develop keratoconus after LASIK either 1) had keratoconus to begin with 2) had a tendency for developing keratoconus which was not evident on pre-operative examination or 3) had an excessively thick flap created or excessively deep ablation so that the remaining corneal bed was too thin for tectonic support. The incidence of #3 is very low with modern LASIK equipment. The goal of pre-operative screening is to identify those patients who have keratoconus (#1)... more