Section 73M. The provisions of sections sixty-six to seventy-three L, inclusive, and any rules or regulations promulgated pursuant thereto shall not apply to the retail sale of simple ready-to-wear magnifying spectacles or eyeglasses; provided, however, that a seller of said ready-to-wear magnifying spectacles or eyeglasses shall have the following notice permanently affixed in plain view to the top of any point of sale display or, if there is no such display, in the area of sale, ”These magnifiers are not intended to be a substitute for corrective lenses; only a professional eye examination can determine your eye health status and vision needs.”