disease has feature Strabismus syndromic disease progressive external ophthalmoplegia Kearns-Sayre syndrome https://github.com/monarch-initiative/mondo/issues/6744 https://github.com/monarch-initiative/mondo/issues/6745 https://github.com/monarch-initiative/mondo/issues/9097 https://rarediseases.info.nih.gov/diseases/6817/kearns-sayre-syndrome Kearns-Sayre syndrome (KSS) is a mitochondrial disease characterized by progressive external ophthalmoplegia (PEO), pigmentary retinitis and an onset before the age of 20 years. Common additional features include deafness, cerebellar ataxia and heart block. ophthalmoplegia-plus syndrome CPEO with ragged red fibers ophthalmoplegia, progressive external, with ragged-Red fibers ophthalmoplegia, progressive external, with ragged red fibres CPEO with ragged-Red fibres CPEO with myopathy Orphanet:480 chronic progressive external ophthalmoplegia with myopathy DOID:12934 NORD:1323 NCIT:C84798 GARD:0006817 MedDRA:10048804 oculocraniosomatic syndrome CPEO with ragged red fibres Kearns Sayre Syndrome NANDO:2200529 icd11.foundation:399100745 SCTID:25792000 MESH:D007625 ophthalmoplegia, progressive external, with ragged-Red fibres Kearns-Sayre syndrome mitochondrial Cytopathy ophthalmoplegia, progressive external, with ragged red fibers KSS OMIM:530000 CPEO with ragged-Red fibers ICD10CM:H49.81 ophthalmoplegia, pigmentary Degeneration of retina, and cardiomyopathy MONDO:0010787 NANDO:1201064 UMLS:C0022541 ophthalmoplegia plus syndrome MEDGEN:9618 obsolete neuro-ophthalmological disease familial dilated cardiomyopathy mitochondrial oxidative phosphorylation disorder hereditary peripheral neuropathy disorder of visual system