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. 2023 Aug 14;3:27. doi: 10.1186/s44158-023-00112-8

Table 1.

PPI score

Maximum stimulation intensity (mA) Pupillary reactivity PPI score
10 Pupil dilates > 13% after a stimulation of 10 mA 9
20 Pupil dilates > 13% after a stimulation of 20 mA 8
30 Pupil dilates > 13% after a stimulation of 30 mA 7
40 Pupil dilates > 13% after a stimulation of 40 mA 6
50 Pupil dilates > 13% after a stimulation of 50 mA 5
60 (1st stimulation) Pupil dilates > 13% after the 1st stimulation of 60 mA 4
60 (2nd stimulation) Pupil dilates > 13% after the 2nd stimulation of 60 mA 3
60 (2nd stimulation) Pupil dilates < 13%, but > 5%, after the 2nd stimulation of 60 mA 2
60 (2nd stimulation) Pupil dilates < 5% after the 2nd stimulation of 60 mA 1