Hello Doctor, A close relative had a triple bypass and soon after he noticed he couldn t see clearly from his left eye. Within two weeks he almost can t see. Two weeks ago, he went to see an eye specialist who asked for a CT scan on the brain, which was done yesterday. Today results showed all OK, the specialist hasn t commented yet, but a doctor in hospital from two days ago we went to Cardiology, said it could be a blood clot. The image of his eye shows thickened nerve ? to the brain and blood around. Could a blood clot be seen on a CT scan? What do you suggest? The eye specialist organised an angiogram for tomorrow from a few days ago, but maybe only if the CT scan showed something?!