No, it is not normal to have the puffy eyes after practicing yoga. Your eyes may have the eyes infection because of the coming invisible bacterium which causes the puffy symptom. You could use the eye drops to release the symptom. If they don't disappear after a while, you could go to the hospital to have a check.
It seems that there is something wrong with your eyes after having some yoga practice. So, as you can see, puffy eyes seem to be normal , however, sometimes it might be a sign of health problem, since puffy eyes could be a sign of heart disease, or has something to do with your kidney, or your sleeping gesture. Sometimes overworking also leads to puffy eyes, so you should try to get proper amount of yoga practice. And if the problem does not go away, just try to see a doctor.