Аннотация:The high frequency optical tracker is discussed in the article. Test image processing algorithm and the math model of a marker image was proposed. It is based on the real images of typical objects for detection. The investigation of its statistical characteristics gives a good approach for image processing algorithms. The model shows good conformity to real data. A new gaze tracking system based on self-designed system on the crystal was developed and tested. The high frame rate allows us to detect and determine several neurologic diseases like Alzheimer's and Parkinson's disease. The device can be also used in wearable virtual reality headsets.