[1] Charite Univ Med Berlin, Campus Virchow Klinikum, Dept Ophthalmol, Augustenburger Pl 1, D-13353 Berlin, Germany
[2] Rhein Westfal TH Aachen, ACTO eV, An Inst, Karlsburgweg 9, D-52070 Aachen, Germany
[3] Charite Univ Med Berlin, Dept Endocrinol & Metab Dis, Berlin, Germany
[4] Charite Univ Med Berlin, Dept Geriatr, Berlin, Germany