...th three academic research groups focused on retinal degeneration: the German company BIOLOG specializes on development of cyclic nucleotide based drugs targeting PKG, CNGC, and GC; the Dutch company to-BBB develops systems to deliver drugs across the blood brain/retinal barrier (BBB, BRB, resp.); the groups of V. Marigo (Modena, Italy), P. Ekström (Lund, Sweden), and F. Paquet-Durand (Tübingen, G ...