translation.en: Stem cell-derived retinal transplants, now in a research phase, may one day restore vision, or part vision, to millions of patients with retinal diseases worldwide.
translation.zh: 视网膜干细胞移植， 目前正处于研究的阶段， 也许将来的某天它就能帮世界上成千上万 视觉障碍患者 重现光明，或者恢复部分视力。