Objective: The present study was carried out to estimate one year prevalence and risk factors of tinnitus in the older individuals (60 years and above) who reported with the ear and/or hearing related complaint to All India Institute of Speech and hearing, Mysore. Methods: The case files of those who visited the institute during the above said period were reviewed retrospectively. Results: The results of the study revealed that the prevalence of tinnitus was 16.81%.It was also found that 60.9% of the individuals with tinnitus were males. Further, 97.5% of the individuals with tinnitus had hearing loss. In addition, 28.53% of the individuals with tinnitus had moderate degree of hearing loss followed by moderately severe degree of hearing loss. Most of these individuals had sensorineural impairment. Conclusion: It can be concluded that prevalence of tinnitus is quite high in the older individuals with otological problems. The hearing loss, gender, giddiness, headache, hypertension, and diabetes were found to be major risk factors.

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A wide range of normative values of amplitude and latencies can be noticed in the publications on ocular vestibular evoked myogenic potential (oVEMP), possibly because of the inconsistent use of various stimulus and acquisition-related parameters such as response filter, gaze angle, onset polarity of stimulus, etc. One major nonuniform parameter across studies is the response filter. Several band-pass response filters such as 0.5–500, 1–1000, 5–500, 5–800, 10–750, 20–2000, 100–3000, and 200–1000 Hz have been used across published studies, and a wide range of normative values can be noticed. However, there is paucity of literature evidence to show that variations in response filters could cause alterations in oVEMP response.This study aimed to investigate the effects of changes in response filter setting on oVEMP.Normative study using repeated measures research design.Young adults in the age range of 18–35 years (N = 150) and older adults in the age range of 60–70 years (N = 10).Contralateral air conduction oVEMP.Contralateral air conduction oVEMP was obtained from only one ear of all participants. Low-pass filters (LPFs) of 500, 700, 1000, 1500, 2000, and 3000 Hz and high-pass filters (HPFs) of 0.1, 1, 10, and 30 Hz were used in all possible combinations of one LPF and one HPF to create band-pass filters. Latencies, peak-to-peak amplitude, and signal-to-noise ratio (SNR) were obtained for each response and comparison was made between various band-pass filters.In young adults, there was a significant reduction in n1 and p1 latencies with increasing HPF and LPF (p < 0.01) and a significant reduction in peak-to-peak amplitude with increasing HPF (p < 0.008). The peak-to-peak amplitude was significantly not affected by changes in LPF (p > 0.05). In older adults, the response rate was better for 0.1- to 1000-Hz than 1- to 1000-Hz band-pass filters.The optimum band-pass filter is 0.1–1000 Hz for recording oVEMP as it produces the largest amplitude oVEMP without compromising on SNR and causes improved response rate in older adults compared with 1- to 1000-Hz filters. Therefore, clinical recording of oVEMP should use 0.1–1000 Hz for obtaining large amplitude potentials and improving the chances of response detection in clinical population.

Vestibular disorders can affect the peripheral or central vestibular systems, controlling and maintaining balance. Several studies have confirmed the high prevalence rate of vestibular disorders in other countries. To our knowledge, only one study has been conducted on benign paroxysmal positional vertigo in eastern India, and limited knowledge on other vestibular disorders in the country. Hence, the present study was conducted at SRM hospital, Kattankulathur, Chengalpattu District, Chennai, Tamil Nadu, India, to estimate the overall prevalence of vestibular disorders in a tertiary care hospital between January 2016 and December 2020. The prevalence was identified through a register-based study that examined the case files of those who visited SRM Hospital with complaints related to balance and analyzed them in a retrospective manner. The present study found that 392 individuals with vestibular disorders were among the 214,004 clients. Thus, the prevalence of vestibular disorders according to the present study is 0.18 percent. The salient results of the present study were: Adults are more likely to experience vestibular disorders 323 (0.15%) children 1 (0.0004%), and, adolescents 7 (0.003%). Therefore, the prevalence of vestibular disorders is higher in adults than in other age groups. Prevalence of vestibular disorders was higher in women 236 (0.11%) than in men 156 (0.07%). The prevalence of vestibular disorders based on different types reveals that 311 (0.14%) BPPV is the most prevalent type, followed by 30 (0.014%) Menieres and 15 (0.007%) vestibular neuritis. KEYWORDS: vestibular disorder, Prevalence, Tertiary care hospital.