Definition of retinitis pigmentosa in English:

retinitis pigmentosa


mass nounMedicine
  • A chronic hereditary eye disease characterized by black pigmentation and gradual degeneration of the retina.

    • ‘Diagnosed at Moorfields Eye Hospital at the age of 4 with retinitis pigmentosa and told that I would not see beyond the age of 15, I have been fortunate to reach the age of 35 with some residual peripheral vision.’
    • ‘Diseases such as age-related macular degeneration and retinitis pigmentosa damage cells in the eye that normally convert light to electrical impulses.’
    • ‘Bryant has retinitis pigmentosa, an eye disease that has blinded four generations of her family.’
    • ‘Millions of people around the world live in a blurry or darkened world because of eye diseases such as macular degeneration or retinitis pigmentosa.’
    • ‘Homer has been legally blind since the age of 35 as a result of retinitis pigmentosa and glaucoma.’


Mid 19th century: pigmentosa, feminine of Latin pigmentosus, from pigmentum ‘pigment’.


retinitis pigmentosa