An optical device combination with a portable electronic device utilizes a users autonomic response to truth/false or beneficial/non-beneficial stimulus and provides immediate feedback to the user in the context of an applied kinesiology exam. Through measurements of the pupils dilation or constriction and processing of the measurements by the portable electronic device, the response is obtained and feedback is provided that reflects the pupillary response. The device and method effectively eliminate the subjective components of prior art muscle testing response from the hands of the testing user as well as providing a simple convenient and portable attachment to a users smart phone.
