The team of the Japan Center for Reproductive Research successfully implanted retinal cells made up of iPS cells in monkeys.
This is the first time that successful researchers have replaced damaged retinal cells, giving hope that someday in the near future can be applied to humans.
The detection of melanopsin pigment in retinal cells plays a role in controlling the circadian rhythm as well as sending information to the visual cortex.
The study was co-chaired by neuroscientists Keith Martin and Barbara Lorber of Cambridge University.
Blind blind patients in the UK will participate in the first trial of eye treatment with human embryonic stem cell therapy in Europe.