I used an app iOS “eye movement training” for free post concussion.
The slide rule looking eye training is also kind of rough. A string with two or three beads on it. All fun things that could make me puke from doing too much.
This is part of what's referred to as "vision therapy". Optometrists would tell you to go to a paid expert---because purportedly some people do it wrong---but IMO you can just YouTube it.
The slide rule looking eye training is also kind of rough. A string with two or three beads on it. All fun things that could make me puke from doing too much.