Yesterday at Pets at Home we bought a flew comb (good for getting out eye bogeys) and a medium tooth comb (good for any tangles).
Rodders had settled down on snuggle fleece while I was talking to OH on the phone and I got down on the floor with him. He let me comb his beard, legs and tummy without too much fuss so I got out the flea comb to sort out his eyes. He was so good and let me sort them out, I was very gentle so that it didn't hurt him.
Lesson for the day, try grooming when he is tired!