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.
Nonreactive pupils: Introduction. Nonreactive pupils: Pupils that fail to constrict in response to light or dilate when the light is removed. See detailed information below for a list of 22 causes of Nonreactive pupils, Symptom Checker, including diseases and drug side effect causes. Â» Review Causes of Nonreactive pupils: Causes | Symptom Checker Â».