[1] W Virginia Univ, Inst Eye, Morgantown, WV 26506 USA
[2] Univ Freiburg, Eye Clin, Freiburg, Germany
[3] Queens Med Ctr, Nottingham NG7 2UH, England
[4] Pfizer Global Res & Dev, Ann Arbor, MI USA
[5] Stanford Univ, Stanford, CA 94305 USA
[6] Univ Padua, Dept Neurosci, Ophthalm Clin, Padua, Italy
[7] Moorfields Eye Hosp, London, England
[8] Visiontest Australia, Sydney, NSW, Australia