After reaching neutrality with a retinoscope, if the examiner moves closer to the patient, they should observe _______ motion in all meridians.

When the examiner reaches neutrality with a retinoscope, it signifies that the patient's refractive error has been properly neutralized, meaning there is no net movement of the light reflex. If the examiner then moves closer to the patient while keeping the retinoscope aligned, the light beam entering the eye will create a different observable motion.

At neutrality, moving closer to the patient causes the light rays to diverge more than before, leading to 'with' motion. This motion occurs in all meridians because the eye is now in a state where the retinoscope beam aligns properly with the visual axis, and any shift in the retinoscope's distance effectively causes the light to move with the eye's line of sight as the diverging rays will project an image that shifts in the same direction as the movement of the examiner. Therefore, observing 'with' motion is expected as a result of this movement towards the patient.

The other options would not apply in this scenario based on the principles of retinoscopy and the dynamics of light refraction in relation to eye position.