[1] Univ Med Ctr Mainz, Expt Ophthalmol, Mainz, Germany
[2] Alzheimers Res, Lab Psychiat & Expt, Dept Psychiat & Psychotherapy, A-6020 Innsbruck, Austria
[3] Med Univ Innsbruck, Dept Pharmacol, A-6020 Innsbruck, Austria
[4] Med Univ Innsbruck, Dept Ophthalmol, A-6020 Innsbruck, Austria