A system for ENT visualization comprising: (a) an image guided surgery ("IGS") navigation system operable to: (i) maintain a coordinate system corresponding to a tracked area, (ii) track one or more position sensors with the coordinate system, and (iii) register the location of a patient anatomy with the coordinate system; (b) a patient tracking assembly (50, 200) configured to be positioned on the patient anatomy, wherein: (i) the patient tracking assembly comprises a position sensor of the one or more position sensors, and (ii) the IGS navigation system is configured to update the location of the patient anatomy with the coordinate system based on movements of the position sensor; (c) a head mounted display ("HMD") comprising a wearable frame and a display, wherein the display is positioned on the wearable frame to be intersected by a neutral optical axis of the wearer; (d) a sensor operable to produce a set of perspective data indicating the perspective of the HMD relative to the patient anatomy; and (e) a processor; wherein the processor is configured to: (i) receive one or more correlated datasets, wherein each of the one or more correlated datasets comprise data associated with the coordinate system, (ii) while the patient anatomy is viewed from a present perspective, determine an orientation of the neutral optical axis relative to a viewed point on the patient anatomy based on the set of perspective data, (iii) determine a distance between an origin of the neutral optical axis and the viewed point based on the set of perspective data, (iv) transform the one or more correlated datasets based on the orientation and the distance to produce an overlay image that corresponds to the patient anatomy at the present perspective, and (v) render the overlay image via the display. (a) an image guided surgery ("IGS") navigation system operable to: (i) maintain a coordinate system corresponding to a tracked area, (ii) track one or more position sensors with the coordinate system, and (iii) register the location of a patient anatomy with the coordinate system; (i) maintain a coordinate system corresponding to a tracked area, (ii) track one or more position sensors with the coordinate system, and (iii) register the location of a patient anatomy with the coordinate system; (b) a patient tracking assembly (50, 200) configured to be positioned on the patient anatomy, wherein: (i) the patient tracking assembly comprises a position sensor of the one or more position sensors, and (ii) the IGS navigation system is configured to update the location of the patient anatomy with the coordinate system based on movements of the position sensor; (i) the patient tracking assembly comprises a position sensor of the one or more position sensors, and (ii) the IGS navigation system is configured to update the location of the patient anatomy with the coordinate system based on movements of the position sensor; (c) a head mounted display ("HMD") comprising a wearable frame and a display, wherein the display is positioned on the wearable frame to be intersected by a neutral optical axis of the wearer; (d) a sensor operable to produce a set of perspective data indicating the perspective of the HMD relative to the patient anatomy; and (e) a processor; (i) receive one or more correlated datasets, wherein each of the one or more correlated datasets comprise data associated with the coordinate system, (ii) while the patient anatomy is viewed from a present perspective, determine an orientation of the neutral optical axis relative to a viewed point on the patient anatomy based on the set of perspective data, (iii) determine a distance between an origin of the neutral optical axis and the viewed point based on the set of perspective data, (iv) transform the one or more correlated datasets based on the orientation and the distance to produce an overlay image that corresponds to the patient anatomy at the present perspective, and (v) render the overlay image via the display.