Clinical Trials in Los Angeles

The Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study

NCT00000155

To describe the clinical course of keratoconus and to describe the relationships among its visual and physiological manifestations, including high- and low-contrast visual acuity, corneal curvature, slit lamp biomicroscopic findings, corneal scarring, and quality of life. To identify risk factors and protective factors that influence the severity and progression of keratoconus.