In his lab, Reh coaxes human embryonic stem cells into retinal stem cells, and currently about 6 percent of them subsequently turn into photoreceptor cells.

• 瑞伊的实验室已能诱导人类胚胎干细胞转变为视网膜干细胞，而其中有6%25的细胞最后会形成感光细胞。