RETINITIS-PIGMENTOSA SINE PIGMENTO MASQUERADING AS NEUROLOGIC DISEASE

We report a 49-year-old female with bilateral, painless, progressive l oss of visual field due to retinitis pigmentosa sine pigmento. The pre sence of optic atrophy and the lack of classic hone spicule changes in this patient led to the erroneous diagnosis of a progressive optic ne uropathy due to neurologic disease, Retinitis pigmentosa should be con sidered in the differential diagnosis of visual field loss with or wit hout optic atrophy even in patients lacking typical bone spicule chang es in the retina, An electroretinogram may be the diagnostic study of choice in these cases.