Thank you so much for taking the time to reply and the information. I do not think he has been to an ENT or Cardiologist. He has seen Neuro-opthamologist, Neurologist and of course his family physicians and they have all run numerous tests and found nothing.I will pass this information along to him and thank you again!
This might sound like a weird thing to suggest, but has he been to an ENT doctor? The problem may not be in his eyes, it maybe an inner ear problem. Remember that ears, nose and throat stuff is all connected and can affect the eyes. He might also want to check with a cardiologist to make sure there isn't a problem with circulation while exercising. God Bless him and hope all is well.