Progressive External Ophthalmoplegia with Mitochondrial Dna Deletions, Autosomal Dominant 5, also known as progressive external ophthalmoplegia with mitochondrial dna deletions, autosomal dominant, 5, is related to rod-cone dystrophy, sensorineural deafness, and fanconi-type renal dysfunction and mitochondrial dna depletion syndrome 8a. An important gene associated with Progressive External Ophthalmoplegia with Mitochondrial Dna Deletions, Autosomal Dominant 5 is RRM2B (Ribonucleotide Reductase Regulatory TP53 Inducible Subunit M2B). Related phenotypes are hearing impairment and anxiety