This study demonstrated that pilocarpine can constrict pupils for a period of time after death.

The longest duration that the pupil showed reaction was found to be about 15 h.

The change in pupils after application of pilocarpine decreased with an increase in the postmortem interval (PMI).

The change in pupil size and PMI were found to be correlated in a statistically significant manner.

Regression analysis was performed to determine the correlation between change in the pupil and PMI.