Method and device for determining intracranial pressure of a patient

A method for determining intracranial pressure of a patient, comprising the following steps:

• a) ultrasound imaging of a central retinal vein supplying a retina of an eye of the patient, for generating ultrasound images;
• b) exerting a varying external pressure on the eye;
• c) identifying a collapse and/or an occlusion of the central retinal vein based on the ultrasound images;
• d) correlating a value of the external pressure to the collapse and/or occlusion;
• and
• e) determining the intracranial pressure based on the correlated external pressure value;
• wherein the collapse and/or occlusion of the central retinal vein is identified on Doppler data relating to a blood flow in the central retinal vein, wherein an impact of ultrasound radiation related to the ultrasound imaging is reduced by at least one of the following measures:
• a) selective switching on and off of a generation of the Doppler data during the measuring process;
• b) restricting the generation of Doppler data to a subvolume of the captured volume for the ultrasound imaging;
• or
• c) reducing a sample volume by pulsing the ultrasound radiation.