I have my eyes checked every year. And every year I am told my distance vision is 20/20 and no correction is needed. So why can't I see distance? It's all a blur and I can't read signs until I am right on them. I am 63 years old and in good health. Is there something my eye doctor should be looking for? A rare or particular eye disease? This will be my 6th annual check up to attempt to find the problem. Help?