Comparing flickering and pulsed chromatic pupil light responses

MARÍA CONSTANZA TRIPOLONE; LUIS ISSOLIO; CARLOS AGÜERO; ALEJANDRO LÁVAQUE ; PABLO BARRIONUEVO

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION - (Print)

OPTICAL SOC AMER

Lugar: Washington; Año: 2022

1084-7529

The pupil light reflex (PLR) can serve as a biomarker of the photoreceptors function. Protocols for chromatic PLR considered mostly pulsed stimulation. A more sophisticated and promising technique is based on the PLR to flickering stimulation. Our aim was to compare fPLR and pPLR parameters in order to validate fPLR paradigm. Two different experiments were carried out in young participants to compare parameters of chromatic pupillary measurements under flickering and pulsed conditions. We found that the fPLR amplitude parameter was significantly associated with pPLR transient constriction parameter. Also -for some conditions- pulse parameters can be identified directly in the fPLR recordings.