I'm sorry but I am not exactly sure what you are talking about. Do you see a gray spot in the middle of your vision? or do you look in the mirror and see a gray spot in the middle of your corneal transplant? Either way it doesn't sound normal but hopefully is not a major problem. It should be very easy for you to call the surgeon's office and have the doctor address your concerns.
MJK MD
What I meant is, when focusing or trying to see something, I can see through the side of my eye and things are slowly clearing, but in the middle of what am seing I cannot focus and looks like a grey spot is blocking my vision, I talked to my doctor about it, but he says that this spot is going to fade as the eye heals. But I am concern that this will not happen and something wrong is going on, the name of my doctor is Mark B. Kislinger.