Will you pay for your shopping with your eye? Interview on TVP morning show

Yesterday I was a guest at Question for breakfast morning show ?. This time I spoke about biometrics. Will we pay for purchases with the eye? ?? Soon we will put the goods into the basket, go to the checkout, put our eye to the reader and it's ready. We will not have to carry any cash or a payment card - our eyes are enough. Such solutions are already appearing in Poland, e.g. in Wrocław. How does it work and is it safe? Link to yesterday's conversation ? https://pytanienasniadanie.tvp.pl/48731167/za-zakupy-zaplacisz-okiem