[1] Friedrich Alexander Univ Erlangen Nurnberg, Pattern Recognit Lab, Erlangen, Germany
[2] Friedrich Alexander Univ Erlangen Nurnberg, Dept Ophthalmol, Erlangen, Germany
[3] Friedrich Alexander Univ Erlangen Nurnberg, Hosp Eye, Erlangen, Germany
[4] MIT, Elect Res Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA