retinitis pigmentosa(redirected from pigmentary reaction of the retina)
Also found in: Dictionary, Thesaurus, Medical.
retinitis pigmentosa[‚ret·ən′īd·əs ‚pig·mən′tō·sə]
A hereditary affection inherited as a sex-linked recessive and characterized by slowly progressing atrophy of the retinal nerve layers, and clumping of retinal pigment, followed by attenuation of the retinal arterioles and waxy atrophy of the optic disks.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.