Recessive Mutation in a Nuclear-Encoded Mitochondrial tRNA Synthetase Associated With Infantile Cataract, Congenital Neurotrophic Keratitis, and Orbital Myopathy

Cornea. 2016 Jun;35(6):894-6. doi: 10.1097/ICO.0000000000000847.

Abstract

Purpose: To report the ocular findings of a rare case of mutation in the nuclear-encoded mitochondrial aminoacyl-tRNA synthetase IARS2.

Methods: A 33-year-old woman known for infantile cataracts, growth hormone deficiency, sensory neuropathy, sensorineural hearing loss, and skeletal dysplasia was referred to us for multiple failed corneal grafts and severe eye dryness.

Results: The patient was found to have neurotrophic keratitis and corneal opacification.

Conclusions: Patients with this very rare mutation present with a myriad of ocular findings, including infantile cataract, neurotrophic keratitis, corneal opacification, and orbital myopathy.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Bioprosthesis
  • Cataract / genetics*
  • Corneal Opacity / diagnostic imaging
  • Corneal Opacity / genetics
  • Corneal Opacity / surgery
  • Female
  • Genes, Recessive
  • Humans
  • Isoleucine-tRNA Ligase / genetics*
  • Keratitis / diagnostic imaging
  • Keratitis / genetics*
  • Keratitis / surgery
  • Keratoplasty, Penetrating
  • Mitochondrial Diseases / genetics*
  • Mutation, Missense*
  • Ocular Motility Disorders / diagnosis
  • Ocular Motility Disorders / genetics
  • Orbital Diseases / diagnosis
  • Orbital Diseases / genetics*
  • Peripheral Nervous System Diseases / genetics*
  • Prosthesis Implantation
  • Reoperation
  • Tomography, Optical Coherence

Substances

  • Isoleucine-tRNA Ligase