The first function, VR brain degeneration assessment uses AI eye-tracking technology to evaluate of the risk of mild cognitive impairment and Alzheimer's disease in 5 minutes. It reflects the six major cognitive abilities with an accuracy rate of 86%. This technology has also been published in international clinical journals. The second function, VR personalized rehabilitation training program use AI to automatically generate a personalized daily VR training program for treatment purpose based on analysis the six major cognitive abilities. Additionally, therapists can tailor-made the training program for the examinee.