No its just a myth. Your eyes have muscles that pull them back to the center.
There are several muscles that allow you to move your eyes.
To allow the eyes to turn
Medial Rectus Muscle and Inferior Oblique Muscle
No. First, your eye muscles will not allow you to roll your eyes all the way back.
Muscles allow you to move.
Muscles allow the skeleton to move.
Cross trainers work out many muscles but mainly they work out the abdominal and arm muscles.
My now 12 yr old son went cross eyed when he was a baby and it was called Pediatric Strabismus. It is when the muscles in the eyes are weak and out of alignment. In my sons case, he had to see a specialist who chose to do surgery to reposition the muscles in the eyes. It was an outpatient surgery and the best choice that we could have made for our son. His eyes now are perfectly straight but due to the fact that the muscles are a bit weaker than normal he does have to wear glasses to keep one of his eyes from turning in slightly! Much better than the alternative of having the eyes crossed!
The extensor muscles allow you to flare (straighten) your fingers.
The muscles are called the extraocular muscules, and they are the superior rectus, inferior rectus, medial rectus, lateral rectus, superior oblique, and inferior oblique.
There are a lot of muscles around your eyes that help them to move, but the eye itself isn't a muscle.