Summary: The text discusses how researchers have successfully restored vision in blind mice by using a new gene therapy technique called optogenetics. By inserting genes that encode light-sensitive proteins into the retina of the mice, the researchers were able to stimulate neural responses to light and effectively restore vision in the blind mice. This breakthrough has significant implications for the field of optogenetics and potentially opens up new possibilities for treating vision-related disorders in humans. The study highlights the potential of optogenetics as a powerful tool for restoring vision in individuals with retinal degeneration or other vision impairments, offering hope for improved treatments and outcomes in the future.