We thank the following foundations for the kind financial support of our research:

European Union’s – Seventh Framework Programme (FP7/2007-2013]) under grant agreement n° 618432-MC-Epi-Patho-Stem

Sisenwein fund for medical research in ophthalmology

Melvin Berlin Fund for Regenerative Medicin

Israel Science Foundation

Ministry of Science and Technology

Rappaport Institute

Mars Pittsburgh fund for Medical Research