Eye blinking symptoms include both an increased and decreased rate of blinking. Most commonly, increased eye blinking results from eye irritation caused by bright light, dust, smoke, or a foreign body in the eye. Allergies, infections, and dry eyes may also increase the rate of blinking. Conditions of stress, anxiety, or fatigue may lead to increased blinking. Facial tics, which are habitual repetitive twitches or movements of the face that occur most often in children, may include increased blinking. Congenital glaucoma is a rare cause of increased blinking.
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