[A case of unilateral retinitis pigmentosa]

A case of unilateral retinitis pigmentosa observed over a period of 15 years is reported. The affected eye showed all typical pathologic manifestations, while in the healthy eye all findings--including ERG and EOG-- were normal. In spite of the unequivocal ophthalmological diagnosis the condition should be regarded as a tapetoretinal degeneration with the clinical picture of unilateral retinitis pigmentosa so long as there is no evidence that it is hereditary.