Retinal precursor cells are important in the development and maintenance of the retina. These cells possess the ability to differentiate into mature retinal cells such as photoreceptors, bipolar cells, and Müller glia cells. There are several synonyms used to refer to these cells including retinal progenitor cells, retinal stem cells, and retinal progenitors. These terms are used interchangeably in scientific literature to describe a population of cells that possess self-renewal capacity and the potential to differentiate into various retinal cell types. Understanding these synonyms and their meanings is important for researchers who study the development and treatment of retinal diseases and injuries.