Transillumination of iris muscles to infer stroma deformation

A method of discovering relationships between iris physiology and cognitive states and/or emotional states of a subject, the method comprising the steps of:

• providing a computing device;
• providing a first video camera configured to record in the near infrared spectrum a close-up view of at least one eye of the subject;
• providing a first light configured to be held to a skin of a lower eyelid of the subject allowing light to shine out from within the at least one eye;
• providing a second light configured to not be in contact with the subject located a distance apart from the subject and configured to illuminate a stroma of a cornea of the at least one eye of the subject;
• wherein the first light and the second light are electronically synced together and configured to flash alternatively;
• the method configured to engage the user in a plurality of tasks, each task of the plurality of tasks configured to be cognitively or emotionally evocative;
• recording, via the first video camera, ocular information comprising responses in the iris musculature and corresponding distortions in the stroma due to the cognitive state and/or the emotional state of the subject produced by the plurality of tasks;
• processing, via the computing device, the ocular information to identify correlations between the responses in the iris musculature and the distortions in the stroma through the use of algorithms;
• and
• identifying, via the computing device, at least one predictive distortion in the stroma that is capturable without utilizing the first light held to the skin of the lower eyelid of the subject and with just a visible-spectrum second video camera correlating to a predicted responses in the iris musculature when the subject was in the cognitive state and/or the emotional state produced by the plurality of tasks.