Fluid intake: how coffee and caffeine affect continence. Caffeine is the most widely consumed behaviour-modifying drug in the world. It occurs naturally in about 60 species of plants, most commonly in coffee beans, tea leaves, cocoa seeds and the cola nut (Thomas, 1990; Greener, 1993).
Clinical features of blepharospasm include involuntary eye closing aggravated by bright lights, wind, pollution, smoke, emotional stress, fatigue. This eye closing may interfere with reading, driving, watching television, and other visual activities, and is rarely associated with retro-orbital. pain. Blepharospasm may be associated with other dystonic disorders, such as oromandibular or. cervical dystonia, and usually occurs in the 5th to 7th decades of life.
Eyelid twitch may occur with other eye symptoms, such as watery eyes and irritated or red eyes or eyelids. Sometimes eyelid twitch appears along with facial tics, which are other involuntary movements of the face including grimacing and nose twitching.he most common known causes of eye twitch include fatigue, stress, anxiety, and excessive caffeine intake. Eyelid twitch may appear in response to irritation caused by smoke, dust, or a foreign body in the eye.