Eyes and their limitations

How many times have you been to the eye doctor? About a zillion for me since I got glasses when I was 5. So that's 4 decades of this is one, this is two, this is one, this is two, and I can't tell the difference!!! So I just guess sometimes. I also usually couldn't tell if the red circle or the black one was darker and clearer. I want to be able to answer the questions. And the optometrists/opthalomologists are so nice. Even when they have to dilate my eyes and I can't see for the next 4 hours, I still like them. But the whole thing would be more fun if the eye charts had secret messages. Go on and make up your own. Custom Eye Chart