Optical coherence tomography angiography (OCT-A) is a determinant progress to study retinal and choroidal vasculature without using a dye injection. OCT-A yields interesting results in different pathologies such as diabetes mellitus, age-related macular degeneration, hypertension blood pressure, particularly by affecting vascular density. Normative database are necessary to compare OCT-A parameters between patients and controls. However, OCT-A devices from different manufactures may give different values for the same subject. It seems to be obvious that each OCT-A device should have its own normative database. In the literature, OCT-A normative databases are developing using different types of devices, but none is available for Heidelberg OCT-A in Caucasians. The purpose of this project is to create a normative database of retinal microvascularisation using Spectralis Heidelberg optical coherence tomography angiography (OCT-A) ® in normal controls.

Inclusion Criteria:

• Voluntary adult subjects or legal representative consenting for minor or subjects under protection
• Intra ocular pression ≤ 21mmHg
• Spherical refraction comprised between - 6 D and +6 D and/or axial length between 21 and 26mm
• Patient affiliated to social security system

Exclusion Criteria:

• Ocular diseases: glaucoma, retinal diseases as diabetic retinopathy, age-related macular degeneration, amblyopia, optic neuropathy
• Diabetes mellitus
• Uncontrolled hypertension blood pressure (> 140/90)
• Recent ocular surgery (< 6 months)
• Any ophthalmological conditions interfering with a good ocular examination or OCT quality (cataract, corneal opacity …)
• OCT-A sufficient quality ≥ 25 (0 = bad quality /40 = excellent quality
• Not consenting patient
• Pathological situation or handicap avoiding good installation