Abstract: 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 patient's 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.

Abstract: The present invention relates to a method for determining a probe model for treating an eye pathology, from among a plurality of different probe models, each probe including a cone-shaped ring including a proximal end (11) intended to be in contact with one eye (4) of a patient and a distal end (12) intended to receive means for generating ultrasonic waves (2), the method comprising a step for receiving at least one measurement of a biometric parameter of the eye, and a step for determining the optimum probe model according to each biometric parameter.