The NeuroLight, a small pupillometer, allows a thorough examination of the pupil and its dynamics with great precision. It is the only pupillometer equipped with a telecentric optical system which does not require any calibration step or compensation of the measurements according to the physiognomy of the patients. The measurements taken are absolute measurements and do not depend on the operator.

From the study of the direct or consensual photomotor reflex to precise measurements of anisocoria and pupil deformation under different light conditions, many possibilities are available to practitioners. Its use makes it possible to optimize and quantify precisely the damages linked to pupillary syndromes such as Addie’s syndrome, Argyll-Robertson’s sign, Claude Bernard Horner’s syndrome,…

NeuroLight’s computing power also makes it possible to analyse and record eye movements in order to extract nystagmus and calculate their frequency and speed.

It should be noted that the measurement accuracy and the calculated parameters allow a fine exploration of the autonomic nervous system via pupillary reactivity. Indeed, we know that changes in the ANS (Diabetes, Alzheimer…) will affect pupil dynamics:

• Decreased magnitude of contraction
• Extended latencies
• Decreased contraction speeds
• Redilation speed reduced