My buckling who was born 3-7-09, he keeps it half-way often and it is has 'tears'. What could it be? This is his 'good' eye. This is his 'bad' eye. You can see him half closing the other eye. I took these pictures when he was lying down. When he is walking around he has it opened half-way. What is it? Any advise would be great... Oh, heres one more pic..