Amyotrophic Lateral Sclerosis, or Charcot's disease, is a neurodegenerative disease affecting motor neurons. The disease affects between 5 and 10 people per 100,000 in the world, nearly 7,000 patients are affected in France. The only therapeutic treatment available to date in France is riluzole, which slows the progression of the disease. Amyotrophic Lateral Sclerosis is the first degenerative disease affecting motor neurons. However, recent evidence suggests that the impairment extends beyond motor neurons alone.

Optical Coherence Tomography analyzes made it possible to highlight ophthalmologic damage in patients with Amyotrophic Lateral Sclerosis, in particular at the macula and papilla, although some results are contradictory.

No angiographic Optical Coherence Tomography analysis has been performed to date in patients with Amyotrophic Lateral Sclerosis. However, in the hypothesis of microvascular involvement participating in the pathophysiology of neurodegeneration in Amyotrophic Lateral Sclerosis, these examinations could provide relevant clinical and pathophysiological data by studying the retinal microvascularization of patients with the disease.

Inclusion Criteria:

Patient Amyotrophic Lateral Sclerosis :

• Patient diagnosed with bulbar or spinal ALS defined according to El Escorial criteria (probable or certain)
• Hospitalized in a day hospital at the Angers University Hospital as part of his usual follow-up

Control subject :

• Subject not affected by the disease studied and without a history of neurological disease.
• Subject matched in age and sex to a case (patient)

For all participants:

• Major upon inclusion
• Signature of informed consent to participate in the protocol

Exclusion Criteria:

Patient Amyotrophic Lateral Sclerosis and control subject :

• Simultaneous participation in another intervention protocol with an experimental treatment
• Subject unable to express consent
• Known ophthalmologic pathology (maculopathy, glaucoma, optic neuropathy, retinopathy whatever the etiology)
• Diabetic subject
• Cardiovascular history
• Inability to perform the ophthalmological examinations of the study
• Pregnant, lactating or parturient woman
• Subject under duress psychiatric care
• Subject to legal protection
• Subject not affiliated or not beneficiary of a social security scheme