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.
Symptoms and Causes of Blepharospasm. Blepharospasm is a condition that causes a rapid blinking of the eye due to involuntary contractions of the orbicularis oculi muscle of the eyelid.1 This is a quick type of spasm which sometimes appears as if the eyelid is closed. The pet's eye may tear and he may be reluctant to look at bright lights in addition to the swift blinking.