[1] Univ Eastern Finland, Publ Hlth & Clin Nutr, Kuopio, Finland
[2] Karelia Cent Hosp, Dept Ophthalmol, Joensuu, Finland
[3] Univ Eastern Finland, Sch Pharm, Kuopio, Finland
[4] Univ Helsinki, Dept Ophthalmol, Helsinki, Finland
[5] Kuopio Univ Hosp, Dept Ophthalmol, Kuopio, Finland
[6] Kuopio Univ Hosp, Res Serv Unit, Kuopio, Finland
[7] Dasman Diabet Inst, Dasman, Kuwait
[8] Univ Oulu, Ctr Life Course Hlth Res, Oulu, Finland
[9] Natl Inst Hlth & Welf, Dept Chron Dis Prevent, Helsinki, Finland
[10] Univ Eastern Finland, Dept Ophthalmol, Kuopio, Finland