Eyes Project

Artificial Inteligence and Pupillary Light Reflex

Over the last decades, pupillometry has been useful to health professionals. Initially, the method was limited to the use of a flashlight aimed at the pupil to assess impairment of consciousness. Advances in technology and the development of devices capable of accurately measuring the diameter of the pupil have enabled more sophisticated and accurate assessments. Currently, studies show that pupillary reaction to light can help specialists perform different types of diagnoses. Automated pupillometry is a system used for pupil images that can help diagnose pathologies, physiological conditions, and cognitive or emotional status. It also allows the assessment of interest, effort in decision-making, tiredness, fatigue, drug use, and functions of the autonomic system. The practicality and assertiveness of pupillometry has roused the interest of the research community, and thus, a considerable amount of research has been published in recent years to aid diagnostics.

In our project, eye movements are recorded using a device specially constructed and pattented to ensure that the ambient light does not interfere with the conduct of the procedure allowing the examiner to configure a complete set of stimuli to produce the necessary reactions. Pupillary movements result from the balance between the activity of the sphincter muscle of the iris innervated by the parasympathetic nervous system responsible for pupillary contraction and the activity of the dilator muscle of the iris innervated by the sympathetic nervous system. The graph of pupillary response to light is showed below.
Currently, there are already researches that demonstrate the evaluation of this signal to identify more than forty different pathologies or physiological states of the human being.

Plataform
Eyes Project

As an important part of the project is an artificial intelligence (AI) platform was developed. Through this, researchers and partner institutions can upload videos. The platform performs the processing of the video using the most current techniques of Ai and provides a detailed report.

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