The improvement of imaging techniques in ophthalmology has made it possible to carry out a precise non-invasive study of the retinal microvascular network and to detect early abnormalities in retinal disorders. The presence of such early retinal abnormalities remains poorly known during type 1 diabetes and may be detected with OCT-angiography. Furthermore, the association with glycemic variability, likely to have deleterious effects on microvessels, has never been studied.

Inclusion Criteria:

For the patient group

• Patient who has given consent

  • Type 1 diabetic patient, no retinopathy For the healthy control group

• Patient who has given consent

• Non-diabetic patient

For dyslipidemic control group:

• Person who has given consent
• Person with familial dyslipidemia

Exclusion Criteria:

For the patient group

• Presence of diabetic retinopathy

• Protected patient:

  • Minor patient
  • Pregnant, parturient or breastfeeding woman
  • Patient under legal protection (guardianship, curatorship, court decision)
  • Patient unable to express consent Person not affiliated to a health insurance scheme

For the healthy control group

• Ophthalmological history (vascular and degenerative macular conditions)

• Protected patient:

  • Minor patient
  • Pregnant, parturient or breastfeeding woman
  • Patient under legal protection (guardianship, curatorship, court decision)
  • Patient unable to express consent Person not affiliated to a social security scheme

For dyslipidemic control group:

• Ophthalmological history (vascular and degenerative macular conditions)

• Protected patient:

  • Minor patient
  • Pregnant, parturient or breastfeeding woman
  • Patient under legal protection (guardianship, curatorship, court decision)
  • Patient unable to express consent Person not affiliated to a social security scheme

Diabetes Type 1 patients followed in the Endocrinology Department of the CHU Dijon Bourgogne or in a diabetology surgery, and non-diabetic controls will be recruited in the Ophthalmology Department of the CHU Dijon Bourgogne