Clinical Trial: Retrospective Study of Corneal Tissue Addition Keratoplasty for Keratoconus and Post-Refractive Ectasia

U.S., Oct. 30 -- ClinicalTrials.gov registry received information related to the study (NCT07905079) titled 'Retrospective Study of Corneal Tissue Addition Keratoplasty for Keratoconus and Post-Refractive Ectasia' on Oct. 23.

Brief Summary: This retrospective, multi-center observational study evaluates clinical outcomes in patients with keratoconus or post-refractive ectasia who previously underwent Corneal Tissue Addition Keratoplasty (CTAK) as part of routine clinical care.

The primary objective is to evaluate changes in corneal curvature, measured by steep keratometry (K2), maximum keratometry (Kmax), and mean keratometry (Kmean), from preoperative baseline to six months following CTAK.

Secondary outcomes include changes in uncorrecte...