The authors thank Geuder AG, Hertzstrasse 4, 69126 Heidelberg, Germany, for supplying us with new silicone oils for this study.
Disclosure: G.U. Auffarth, Alcon (F, R), Oculentis (F, R), Carl Zeiss Meditec (F), Hoya (F, R), Kowa (F), Ophtec (F), Physiol (F), Powervision (F), Rayner (F, R), SIFI (F, R), Johnson & Johnson (F, R), Acufocus (F), Polytech (F, R); M. Hammer, None; S. Schickhardt, None; D.J. Munro, None; A. Scheuerle, None; C.S. Mayer None