WALTHAM, Mass.--(BUSINESS WIRE)--Avedro, Inc. today announced it has signed a definitive agreement with Swiss-based Peschke Meditrade GmbH to acquire the rights to its Phase III studies of Corneal Collagen Crosslinking for the treatment of progressive keratoconus and post LASIK ectasia. The two randomized, controlled, multi-site clinical trials are designed to assess the safety and efficacy of riboflavin/ultraviolet-A light for halting the progression of these degenerative disorders and the accompanying decline in patient’s visual acuity.