The invention concerns a device allowing the treatment of an ocular pathology, comprising:a suction ring (1) including a proximal end adapted to abut the eye of a patient and comprising a hollow portion,an aspiration system (5) connected to the hollow portion to aspirate air in the hollow portion so as to fix the ring onto the patients eye,noteworthy in that the aspiration system is adapted to generate a low vacuum of less than 150 millimetres of mercury, and preferably of substantially 120 millimetres of mercury.
