Eye tracking difficulties?

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Anyone have subtle eye tracking difficulties which can range from tracking a baseball or football in the air to using a finger on a printed book page to keep from losing one's place in the text? Experiences?

Not a one track eye topic

Yes, I noticed this as a teen (many, many years ago) and I still go off lines in books if I am not careful. I even used rulers! For this reason speed reading is out, but I might skip some paragraphs in order to finish a chapter more quickly (not recommended).

An embedded GPS chip helps me track my eyes ...

As a kid, even into my teens, I would often get stuck, and read the same line in a paragraph over and over, and wonder why the resulting sentence didn't make sense. I usually have a ruler, or something handy when reading printed works. On screen, I will usually highlight with the mouse as I read, if there is a lot of text.

Yes, I've been watched since infancy for such problems. Finally saw a really good ophthalmologist recently. She told me that I've had a minor (but significant in its effects) form of strabismus (exotropia) since infancy that probably contributed to these difficulties without anyone knowing what it meant. My eyes both point slightly outward from where they should. Now I wear prism lenses which help a lot although when I get tired my eyes diverge even more. (She told me it's normal to need more and more prism as time goes on.)

I've had to use a piece of paper when reading things like text books. When reading fiction, I'll end up reading the same paragraph more than once.

I remember in grade school that trying to catch a pop-fly baseball would typically result in being hit in the forehead with it. Actually, most attempts to catch a baseball with any trajectory would end that way.

I actually often have double vision, but it doesn't often bother me a lot. I've noticed in the mirror that my left eye seems to "float" visibly out of sync with the right one. And if I'm feeling tired and/or spacey it drifts more. At times the double vision does get to be too much (to be able to read), though.

Have also done the "read the same line of text over and over" thing.

I've found that double vision doesn't stop me from reading. After awhile, it's like the second vision is there, but I somehow ignore everything that's not my dominant eye (left eye). I don't know how that works. I've heard that for some people their brain just stops registering anything from the other eye. But in my case, it's more like the double vision is there if I look for it but I have to look really hard, usually by concentrating on a specific single object and seeing (carefully looking, otherwise I miss it) if there's two of it or not.

What's amazing about the prism glasses is they've given me true depth perception. Which took a long time to get used to, because it made me overcompensate and freak out over very small depths. I thought tree branches were poking me in the face. And at one point I nearly got myself killed walking home from the appointment, because (I use a wheelchair) I ended up with my front wheels hanging over the road. I'm glad that I'm rear wheel drive and that someone was there to help pull me out or I'd have been in serious trouble. It took me a few weeks to get confident enough to go outside again, because I couldn't gauge things like how I would be affected by cracks in the sidewalk and stuff.

If someone throws a ball at me I have a hard time tracking it. But is something flies past me unexpectedly when I am completely unaware of it I can catch it. I have caught mugs, small parts, and tools that suddenly have fallen off a machine I was near but when someone tosses me a tool or a set of keys I will miss it by miles. I also have the same problems loosing my place when reading. I some times have to use an index card to keep my place.

Funny thing is when I go target shooting I have no problem tracking and hitting a moving or pop up target.