  Developing and evaluating vision science methods require robust and efficient
tools for assessing their performance in various real-world scenarios. This
study presents a novel virtual reality (VR) simulation tool that simulates
real-world optical methods while giving high experimental control to the
experiment. The tool incorporates an experiment controller, to smoothly and
easily handle multiple conditions, a generic eye-tracking controller, that
works with most common VR eye-trackers, a configurable defocus simulator, and a
generic VR questionnaire loader to assess participants' behavior in virtual
reality. This VR-based simulation tool bridges the gap between theoretical and
applied research on new optical methods, corrections, and therapies. It enables
vision scientists to increase their research tools with a robust, realistic,
and fast research environment.
