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.
Unequal pupils is called anisocoria and is most commonly caused by HJorner syndrome or a Third nerve palsy. In both conditions, an abnormality or asymmetry of the lid will likely be noted. With Horner's, the problem is on the side with the smaller pupil; with 3rd nerve palsy, the larger pupil is the problem side. Other causes coud be trauma, vision problems, or even familial....