[1] F Hoffmann La Roche Ltd, Pharm Res & Early Dev, Basel, Switzerland
[2] Univ Bern, Dept Ophthalmol, Cantonal Hosp St Gallen, Bern, Switzerland
[3] Augenzentrum St Franziskus Hosp, Augenzentrum St, Munster, Germany
[4] Univ Calif Los Angeles, Doheny Eye Inst, Pasadena, CA USA
[5] Queens Univ Belfast, Inst Clin Sci Block A, Belfast, North Ireland