This motor response occurs within minutes of drinking coffee and can last for up to 90 minutes. There is no gender difference in the effect that coffee has on motor activity (Rao et al, 1998), but it may not be related to caffeine.
Dilation of the pupil in an eye with the synechia can cause the pupil to take an irregular, non-circular shape (Dyscoria) as shown in the photograph. If the pupil can be fully dilated during the treatment of iritis, the prognosis for recovery from synechia is good. This is a treatable status. To subdue the inflammation, use topical corticosteroids.
1 Constriction of the pupil that is excessive, relative to the amount of light the pupil receives. 2  Constriction of the pupil to a diameter of less than two millimeters. 3  Constriction of the pupil with causes including both abnormal and physiological ones.  Pupillary constriction by abnormal causes.