Metabolomics Analysis According to the Retinal Nerve Fiber Layer in Patients With NOHL Mutations (MétabOCT)

Inclusion Criteria: * Patient carrying an mtDNA mutation suggestive of NOHL (11778, 3460 or 14484) with normal visual acuity and who has never had optic neuropathy, or Patient not carrying an mtDNA mutation suggestive of NOHL (11778, 3460 or 14484) with normal visual acuity and who has never had optic neuropathy; * Patient agreeing to undergo an OCT; * Patient agreeing to sign the informed consent; * Patient affiliated to French social protection (Primary Health Insurance Fund, CMU, etc.) or European social protection. Exclusion Criteria: * Patient with or having had optic neuropathy regardless of its etiology * Patient with glaucoma regardless of its etiology; * Patient not wanting to undergo OCT; * Patient not wanting to sign the informed consent; * Patient not affiliated with French social protection (Primary Health Insurance Fund, CMU, etc.) or European. * Patients less than 18 years old or over 60 years old * Pregnant patient