Image processing device, method of image processing, and surgical microscope

A method of image processing, the method comprising the steps of:

• Obtaining, along one or more tomographic planes, a tomographic image of an eye, the tomographic image being acquired during surgery of the eye,
• calculating a risk parameter based on positions of anatomical structures of the eye that are derived from the tomographic image and from a position of a surgical instrument, and detecting, by image processing circuitry, a dangerous condition on the basis of the tomographic image of an eye acquired during surgery of the eye;
• and
• generating and outputting, by the image processing circuitry, control information that, upon the risk parameter passing a predetermined threshold, signals a warning to a user, displays the tomographic image of the detected dangerous condition, and/or initiates a change to an irrigation fluid pressure or the position of the surgical instrument that reduces a likelihood of complications resulting from the detected dangerous condition.

A surgical microscope comprising:

• a tomographic imager configured to capture, along one or more tomographic planes, a tomographic image of an eye, during surgery of the eye;
• and
• processing circuitry configured to
• calculate a risk parameter based on positions of anatomical structures of the eye that are derived from the tomographic image and from a position of a surgical instrument detect a dangerous condition on the basis of the tomographic image of the eye acquired during surgery, and
• generate and output control information that, upon the risk parameter passing a predetermined threshold, signals a warning to a user, displays the tomographic image of the detected dangerous condition, and/or initiates a change to an irrigation fluid pressure or the position of the surgical instrument that reduces a likelihood of complications resulting from the detected dangerous condition.