What is retinitis pigmentosa?
Retinitis pigmentosa is a disorder that falls into a group of inherited retinal dystrophies.
It affects certain cells in the retina, called photoreceptors, which are responsible for receiving light on the retina and sending it to the cerebral cortex, where the image is analysed.
It is a progressive disease, which means that signs and symptoms will progress over time. Initially, only the cells on the periphery of the retina are affected and over time, it continues to develop, moving towards the centre. There are multiple variations of the disease, which determine the age at which it appears and its seriousness.