What are the causes of abrupt changes in pupil area within a reasonable range?

13 June 2024 1 5K Report

In many pupil data it is always seen that there exists a momentary change in pupil area to a larger or smaller pupil, but what exactly causes the pupil to change abruptly within a reasonable range. Is there a tentative-like behaviour of the pupil? The pupil will try to change on its own to see if it can adapt.

Hsin-Yuan Chen

Hi,

Abrupt changes in pupil area are mainly caused by shifts in light, emotions, and mental focus as the pupil adjusts to optimise vision.

Hope this helps.

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