[Errant]

I had it explained to be by an FAA flight physician almost two years ago. Best I can remember, he said something about the way the brain assembles images from our eyes into a single picture in the brain. As we age, that ability deteriorates, plus some people are more prone to the problem. IIRC, depth perception is also affected.

If you have concerns, you might want to see what you can find on the net and maybe even talk to your physician about it. There is a really simple eye test for finding out how much your vision is affected by it. We all have some decree of it - most never know it.

[Eva]

I did look it up. It wasn’t very informative, but they did say that it could be an indicator for Alzheimer’s. What my daughter has is not an interpretation from the brain, though. Her brain is getting two different messages because the eyes don’t track together.