TED-Ed: Could a blind eye regenerate? - David Davila

The video explores the concept of blindness, often caused by genetic diseases like Retinitis pigmentosa and Usher syndrome, which affect the retina. It introduces the zebrafish, a creature capable of regenerating its retina, unlike humans. The human retina consists of photoreceptors that do not regenerate, leading to vision loss. Zebrafish, however, can regenerate these cells, thanks to Müller glia, which transform into stem cells to repair the retina. Scientists study this process to potentially apply it to human retinal repair, though challenges remain in triggering this regeneration in humans.

Why is the zebrafish considered a master regenerator compared to humans?

What challenges do scientists face in triggering retinal regeneration in humans?