Any retinitis pigmentosa in which the cause of the disease is a mutation in the IMPDH1 gene. The disease is Monarch Disease Ontology identifier MONDO_0008379 (retinitis pigmentosa 10). Also known as: IMPDH1 retinitis pigmentosa, RP10, retinitis pigmentosa caused by mutation in IMPDH1, retinitis pigmentosa type 10.