Accelerated Versus Standard CXL in the Treatment of Ectasia Post Refractive Surgery and Penetrating Keratoplasty.

Purpose: The aim of this study is to compare the clinical outcomes of the Standard CXL and the AC CXL in patients with progressive corneal ectasia post refractive surgery and penetrating keratoplasty. Setting: Menoufia University Hospital, Egypt Design: Prospective, randomised comparison. Methods: Patients scheduled to receive either Standard CXL (3mW/cm2 for a period of 30 min) or Accelerated CXL (18mW/cm2 for a period of 5 min).The main outcomes for comparison were the change in; Maximum-K reading (K-max), manifest refractive spherical equivalent (SE), central corneal thickness (CCT), and the best corrected distance visual acuity (CDVA).