A rapid quantification of binocular misalignment without recording eye movements: Vertical and torsional alignment nulling.

•We developed vertical and torsional alignment nulling (VAN, TAN) to quantify ocular misalignments.•VAN and TAN employ portable, non-invasive hardware that can be self-administered.•VAN and TAN can measure misalignment within 0.04 deg vertical and 0.1 deg torsional resolution, which correspond to the resolution of the screen for the chosen testing distance.•VAN and TAN are valid and reliable perceptual measures of ocular alignment.