Retinitis Pigmentosa is a rare genetic eye disorder that affects the retina, the light-sensitive tissue at the back of the eye. It causes progressive vision loss, starting with difficulty seeing in low light and peripheral vision loss. Over time, this can lead to tunnel vision and, in some cases, complete blindness. The condition is caused by mutations in genes responsible for the health of photoreceptor cells, which are crucial for vision. While there is currently no cure, research is ongoing, and some treatments, like gene therapy, are showing promise in slowing down the progression of the disease.