When both LS1 and LS2 are not actuated: 
Definitions:
Increased Pressure
A condition where the force exerted by a fluid against a surface is higher than normal.
Pupillary Light Reflex
A reflex that controls the diameter of the pupil in response to the intensity of light to protect the retina by constricting or dilating the pupil.
Penlight
A small, portable flashlight, often used in medical examinations to observe pupils' reaction to light or to inspect areas of the mouth and throat.
Pupillary Constriction
The narrowing or tightening of the pupils, which can occur in response to light exposure or during focusing on objects.
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