Minimal latency apparatus and method for supporting foveated rendering

A virtual reality/augmented reality (VR/AR) wearable assembly comprising:

• a wearable frame adapted to be worn over a patient's eyes;
• a display device mounted to the wearable frame;
• a photosensor oculography (PSOG) assembly mounted to the wearable frame and including an eye tracking assembly;
• and
• a processor coupled to the PSOG assembly and the display device, the processor including an eye-tracking module configured to execute an algorithm to render computer-generated images on the display device including the steps of:
• detecting a saccade of a corresponding eye of the patient via the eye tracking assembly and determining an initial saccade gaze position location of the corresponding eye associated with the detected saccade;
• determining a peak velocity of the saccade;
• determining a final saccade end gaze position based on the determined peak velocity of the saccade;
• and
• rendering a foveated image on the display device at an image location corresponding to the determined final saccade end gaze position.