purpose: to evaluate the etiologies of excessive blinking in children and teenagers less than 18 years of age in hamedan, iran. methods: this study was performed during 2009-2010 as a cross-sectional study on 50 children and teenagers less than 18 years old who were referred to sheikh-al-reis and farshchian clinics in hamedan for abnormal and excessive blinking. ophthalmic and neurologic examin...

abnormalities of blinking in childhood are not uncommon. to determine the characteristics and causes of excessive blinking, this prospective, non–comparative consecutive case series study was carried out. in outpatient clinics of ophthalmology and neurology of our hospital, 60 children aging 2-16 years old with excessive blinking were examined. detailed ophthalmologic and neurologic evaluation ...

A family is reported in which three generations were affected with eye-winking tics and/or blepharospasm. The proband developed eye-winking tics in childhood and then developed excessive blinking progressing to blepharospasm by the age of 21 years. His mother presented with Meige's syndrome and spasmodic torticollis at the age of 59 years; his uncle had blinked excessively from his early fortie...

A wide variety of movement disorders can be induced by the administration of antiepileptic drugs. A 44-year-old female was admitted with involuntary excessive eye blinking that manifested 5 months after beginning the administration of lamotrigine for control of complex partial and secondarily generalized seizures. The involuntary eye blinking persisted while taking lamotrigine, and disappeared ...

Excessive sleepiness in drivers greatly increases the risk of traffic accidents. A compact, three-dimensional system for analyzing visual information from a face photograph using an infrared CCD camera was recently designed to monitor drivers. The present study aimed to examine whether temporal changes in autonomic activity as determined by spectral analysis of electrocardiogram heart rate vari...

Dry eye syndrome (DES) is a common problem caused by excessive dryness and other factors affecting the general population which involves inflammatory reactions in the cornea and associated regions of the eye. The severity can range from mildly irritating to much more severe symptoms associated with burning, stinging, itching, frequent blinking, redness, eye pain, others. DES prevalence in the p...

A previously healthy 9-year-old girl presented with a 10-day history of slowly progressive unsteadiness, slurred speech, and behavior change. On examination there was cerebellar ataxia and dysarthria, excessive blinking, subtle perioral myoclonus, and labile mood. The finding of oligoclonal bands in the cerebrospinal fluid prompted paraneoplastic serological evaluation and search for an occult ...

BACKGROUND Eye movements have been used in control interfaces and as indicators of somnolence, workload and concentration. Different techniques can be used to detect them: we focus on the electrooculogram (EOG) in which two kinds of interference occur: blinks and overshoots. While they both draw bell-shaped waveforms, blinks are caused by the eyelid, whereas overshoots occur due to target local...

Blinking, a motor act consisting of a closing and an opening eyelid movement, can be performed voluntarily, spontaneously, and reflexly. In this study we investigated the kinematic features of voluntary, spontaneous, and reflex blinking in patients with Parkinson's disease (PD), OFF and ON dopaminergic treatment. Patients were asked to blink voluntarily as fast as possible. Spontaneous blinking...