Pigmentary Retinopathy DDx:
Degenerative:
Age-related macular degeneration
Myopic retinopathy
Toxicity:
Chloroquine/Hydroxychloroquine
Phenothiazines – Thioridazine, chlorpromazine
Pentosan Polysulfate
Deferoxamine Toxicity
Vitamin A deficiency
Abetalipoproteinemia
Malignant Conditions:
Melanoma-associated retinopathy – Bilateral Diffuse Uveal Melanocytic Proliferation (BDUMP)
Retinal Dystrophies:
Retinitis Pigmentosa
Pattern Dystrophy
Cone-rod dystrophy
Stargardt disease
IRD in Mitochondrial disorders (Kaerns-Sayre Syndrome, Maternally inherited diabetes and deafness, Mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes, Myoclonic epilepsy with ragged red fibers)
Usher Syndrome
Alstrom Syndrome
Refsum Disease
Alport Syndrome
Infectious + Inflammatory Causes:
Congenital Syphilis
Rubella Retinopathy
Toxoplasmosis
CMV Retinitis
Tuberculosis pigmented retinopathy