Well, yes, it is normal to have sensitivity to light after you have taken the prk surgery. First, you should know that there are many people who have prk surgery, and this kind of surgery is safe. But on the other hand, there are also some side effects occurring after the surgery, especially when you do not take care of your eyes. For your situation, you can just adjust it by eating Chinese wolfberries. Also, after surgery, just take more care of your eyes, avoiding eye infection, or it can lead more serious problems. and also, it will just take about three days for them to recover,so you do not need to worry about it.