Hillel Yaffe Medical Center 1 article published in JoVE Developmental Biology A Method for Lineage Tracing of Corneal Cells Using Multi-color Fluorescent Reporter Mice Aya Amitai-Lange*1, Eran Berkowitz*2, Anna Altshuler1, Noora Dbayat2, Waseem Nasser1, Edith Suss-Toby3, Beatrice Tiosano2, Ruby Shalom-Feuerstein1 1Department of Genetics and Developmental Biology, The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, 2Department of Ophthalmology, Hillel Yaffe Medical Center, 3Bioimging Center, Biomedical Core Facility, The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Israel Institute of Technology In this article we describe the principles for designing and performing a multi-color lineage tracing experiment using R26R-Confetti mice. We provide a specific protocol for tracking corneal epithelial cells which can be modified for other tissues of interest.