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pupil responses lines. This action will store temporarily all the examination in the 2WIN
memory. If all the change event were discovered, in order to store permanently the exam
in the 2WIN SD card, the operator must come to the 2WIN home screen pressing the ESC
button, and then press and hold the PRINT button (this will generate the final PDF report of
the exam).
PDF Report
The PDF Report is composed of the pupil response graphic and of the corresponding data:
• The graphic includes both the pupil eye responses and a partial reproduction of the
axes that have been positioned earlier (axes could be out of the image and conse-
quently you can’t see them)
• The data area is divided in three parts which refer to the second pupil stimulation
(and not to the calibration):
1. The “Constriction” phase, the pupil constriction phase.
2. “Pupil Size”, data about the pupils
3. The “Dilation” phase, the pupil dilation phase
The Constriction phase has three variables which are:
1. LoC = Latency of Constriction, which is the reaction time used by the pupil to start
constricting after the light switching on.
2. DoC = Duration of Constricting, which is the time used by the pupil to constrict and
stabilize.
3. VoC = Velocity of Constriction, which is the pupil velocity to constrict.
The Dilation phase has three variables which are:
1. LoD = Latency of Dilation, which is the time used by the pupil to start dilating after
the light switching off.
2. DoD = Duration of Dilation, which is the time used by the pupil to dilate and sta-
bilize.
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