Product Development
What does the APS Detect Handheld Pupillometer do?
The APS Detect is an investigational handheld device designed to quickly and accurately measure a child’s pupillary light reflex (PLR) and easily generate an Autism Pupil Screen (APS) score. It is being examined for effectiveness as a diagnostic aid to bolster decision making about autism spectrum disorder (ASD) screening during routine well-child exams for young children. A graphical user interface on the touchscreen guides the clinician through the steps required to capture valid and reliable PLRs.
How does it work?
The device collects two five-second PLR test recordings from each eye. During each recording, light shines briefly into the child’s eye to elicit the PLR, while an image sensor captures the pupil response. The device captures 400 frames per eye at a rate of 80 frames per second. An eye tracking algorithm converts the image capture into pupillary diameter and velocity measurements. It then compares those measurements with aged-based PLR thresholds predicting ASD risk. The device calculates an APS score for the physician to consider among other developmental indicators, providing an objective physical marker when deciding to fully evaluate for ASD.
