Mitochondrial optic neuropathies

Evidence-based neurology checklist on mitochondrial optic neuropathies: Inherited causes Leber hereditary optic neuropathy (LHON) Dominant optic atrophy (DOA, OPA1 mutations) Friedreich’s ataxia (FA) Hereditary motor sensory neuropathy 6 (HMSN 6; MFN 2) Hereditary spastic paraparesis 7 (SPG7;…

Inherited causes

  • Leber hereditary optic neuropathy (LHON)
  • Dominant optic atrophy (DOA, OPA1 mutations)
  • Friedreich’s ataxia (FA)
  • Hereditary motor sensory neuropathy 6 (HMSN 6; MFN 2)
  • Hereditary spastic paraparesis 7 (SPG7; paraplegin)

Acquired causes: medical

Acquired causes: toxins

Acquired causes: drugs

Acquired causes: vitamin deficiencies

Clinical features

Differential diagnosis

Investigations

Treatments

References

  1. Pilz YL, Bass SJ, Sherman J. A review of mitochondrial optic neuropathies: from inherited to acquired forms. J Optom 2017; 10:205-214.
  2. Yu-Wai-Man P, Griffiths PG, Hudson G, Chinnery PF. Inherited mitochondrial optic neuropathies. J Med Genet 2009; 46:145-158.
  3. Yu-Wai-Man P, Griffiths PG, Chinnery PF. Mitochondrial optic neuropathies - disease mechanisms and therapeutic strategies. Prog Retin Eye Res 2011; 30:81-114.
  4. Ng WSV, Trigano M, Freeman T, et al. New avenues for therapy in mitochondrial optic neuropathies. Ther Adv Rare Dis 2021; 2:26330040211029037.

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