Erratum to: Graefes Arch Clin Exp Ophthalmol

DOI 10.1007/s00417-013-2485-2

Reason: The pictures and subtitles have been interchanged in the original publication.

Corrected version: The figure legend of Fig. 5 belongs to Fig. 4, the figure legend of Fig. 6 belongs to Fig. 5, and the figure legend of Fig. 6 belongs to the flow chart. The assignment of the figures (e.g. Fig. 3) in the text and the subtitle of each figure are correct – however, the wrong figure is depicted.