In most cases, the first noticeable symptom is weakness of the eye muscles.

Anyway, the doctor had told him to look away from the screen into the distance occasionally to exercise his eye muscles, so he did.

Ishigaki thinks of this game as training the brain rather than the eye muscles.

My eye muscles were tired; I just kept looking at him.

The exercises strengthen eye muscles and improve focus at the plate.

The brain may give up trying to move eye muscles in order to get a clear picture.

Sometimes surgery on more than one eye muscle is required.

That is because their eye muscles do not work correctly.

This makes sure that the person will never have a chance to train the eye muscles to work correctly.

This contains a number of nerves that control the eye muscles.