What is Non-optical?

Non-optical definition and meaning on Dictionary terms:

of, relating to, or applying optics or the principles of optics.
constructed to assist sight or to correct defects in vision.
of or relating to sight or vision; visual.
of or relating to the eye.
of or relating to an optician or opticians or to their products, especially eyeglasses: an optical service.
dealing with or skilled in optics.