Intel's RealSense 3D camera supports this functionality and the microprocessor manufacturer has published a website with a list of all the devices supporting Windows Hello facial recognition.
It is important to have your eyes examined regularly. Your eyes should be tested: before age 40, every two to four years. from age 40 to age 54, every one to three years. from age 55 to 64, every one to two years. after age 65, every six to 12 months.
Even if you are not aware of any problems you should have your eyes tested every 2 years. The eye test is a regular health check, which can detect underlying health problems as well as changes in your vision. It may need to be more frequent depending on you age and medical history.