الفهرس 
Introduction and Rationale
Speech processor:Only 14 pages are availabe for public view
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Abstract
Hearing loss is the most common sensory deficit to affect humans; 278 million people worldwide have bilateral,moderate to profound hearing loss (WHO,2005 and Rajendran et al.,2013).Cochlear implant(CI)is the gold standard for therapy of severe to profound hearing loss(HL)who do not benefit from wearing conventional hearing aids (Hajioff, 2016).Cochlear implant is considered a surgically safe procedure. however, it has some risk in vestibular function. The incidence of complications after CI surgery is reported to be about 16–57%, although the majority of these complications are minor and self-resolving (Venail et al., 2008, Jeppesen and Faber, 2013)
Vestibular Evoked Myogenic Potentials(VEMPs)are short latency muscle potentials that measures the muscle response to auditory stimulation. There are two types of vestibular evoked myogenic potentials, cervical (cVEMPs) and ocular VEMPs (oVEMPs). cVEMPs assess the functioning of the saccule and inferior vestibular nerve and central connections, Whereas oVEMPs assess the functioning of utricle and superior branch of the vestibular nerve and central connections (Hain, 2010).
This current study was designed to evaluate vestibular function after cochlear implant in unilateral cochlear implantee using combined cervical and ocular VEMPs and comparing the results with children with bilateral normal hearing.