At first, your pup is not going to be very happy about you and a pair of shears getting anywhere near his eyes. But, with a little time and patience, you can teach your pup that it's okay for you to be there. Especially once he gets used to being able to see again. Take your time letting him get used to the shears and the sounds they make before you try to trim around his eyes, this will make the rest of the process go easier.
It is very important that you keep the hair around your pup's eyes regularly groomed. Not only will with make it easier for your pup to see where he is going, but it can eliminate having the hair rub his eyes and cause injury to them. It doesn't take more than 20 minutes to groom around your pup's eye, but he is sure to appreciate it.