Is there a cure for retinitis pigmentosa or nightblindness?

No: Retinitis pigmentosa (rp) is a defect in the lining tissue under the retina called the retinal pigment epithelium (rpe). It can be hereditary or sporadic , affect males or females, be found alone or with hearing or other neurological abnormalities. Treatment options are still experimental involving stem cell implantation, or gene therapy but none of these treatments are available yet to the public.

Retinal Chip: Retinitis pigmentosa is a group of inherited disorders that cause degeneration of the retina and vision loss. Depending on the type, some vision can be retained throughout life, in other cases, not. The most common symptoms are night blindness and gradual loss of peripheral vision. There is a new retinal implant which restores crude central vision( argus ii) for those who are blind from rp.