Pupil Dynamics and Color Vision for the Detection of Eye Diseases

Inclusion Criteria: \- Patients with an understanding of the French language to ensure a perfect understanding of the instructions during evaluations and documents relating to their involvement in the study. Visually impaired volunteers: Patients must have one of three conditions: Retinitis Pigmentosa, Stargardt disease, Leber optic neuropathy. Healthy volunteers: * Visual acuity of both corrected eyes (glasses) should be higher or equal 8/10th and a normal visual field. * Patients should not wear contact lenses (which may interfere with the recording of the pupil and eye movements) Exclusion Criteria: * Pregnant or lactating women will not be able to participate in this research. * Participants should not be unable to personally consent. * Subjects should not participate in another clinical trial that may interfere with this research. * Inability to personally consent. * Subjects should not present with degenerative diseases or any other disease that could interfere with the evaluations planned during this study. * The subject follows a drug treatment which can cause visual disturbances, changes in pupillary kinetics or cognitive disturbances. Secondary exclusion criteria (at the end of the inclusion visit): * Visually impaired subjects and controls for which calibration is not feasible. * Patients and control subjects having difficulty maintaining visual fixation. * Patients and subjects wearing corrective lenses making it impossible to record oculomotor activity with an infrared camera oculometer.