Company Dffuse retinal dystrophies initially predominantly affecting the

Company • Dffuse retinal dystrophies initially predominantly affecting the rod photoreceptor cells with subsequent degeneration of cones (rod-cone dystrophy). Logo

Company Logo It is the most commonly encountered hereditary fundus dystrophy with a prevalence of approximately 1 :  5000

Company l Inheritance Isolated sporadic disorder AD AR XL Logo

Company l. Diagnostic criteria Bilateral involvement loss of peripheral vision loss of night vision Logo

Company l Classical (a) Logo triad of RP Arteriolar attenuation, (b) Retinal bone-spicule pigmentation (c) waxy disc pallor.

Company Retinitis pigmentosa Logo

Company Logo

Company l l ERG EOG DA Perimetry Logo

Company Ocular associations 1 Posterior subcapsular cataracts. 2 Open-angle glaucoma 3 Myopia 4 Keratoconus 5 Vitreous changes Posterior vitreous detachment 6 Optic disc drusen Logo

Company Atypical retinitis pigmentosa l RP sine pigmento l Retinitis punctata albescens l Sector RP Logo

Company Logo Retinitis punctata albescens

Company systemic associations l Bassen–Kornzweig Logo syndrome (abetalipoproteinaemia) spinocerebellar ataxia l Refsum disease anosmia, deafness, cardiomyopathy

Company l Kearns–Sayre Logo syndrome l Bardet–Biedl syndrome hypogonadism in males, polydactyly, truncal obesity l Usher syndrome skeletal anomalies, deafness, mental handicap

Company Differential Diagnosis of Nyctalopia l Retinitis pigmentosa l Vitamin A deficiency l Liver diseases l Chorioretinitis Logo

Company Treatment l Vitamin A l Low vision aids Magnifier, Telescope, CCT l Genetic counselling Logo

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