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.
Then starting at age 3, they should receive another eye exam. At age 6, kids should have their eyes tested every two years, and more often if their eye doctor recommends it. In general, if you wear glasses or contact lenses, the recommendation is every one to two years. If you don't wear corrective lenses and are healthy and between the ages of 20 and 40, you can get an exam as infrequently as every five years, unless you notice vision changes that may require immediate care.