The objective of this study is to assess high frequency hearing (above 8 kHz) loss among prolonged mobile phone users is a tertiary Referral Center. Prospective single blinded study. This is the first study that used high-frequency audiometry. The wide usage of mobile phone is so profound that we were unable to find enough non-users as a control group. Therefore we compared the non-dominant ear to the dominant ear using audiometric measurements. The study was a blinded study wherein the audiologist did not know which was the dominant ear. A total of 100 subjects were studied. Of the subjects studied 53% were males and 47% females. Mean age was 27. The left ear was dominant in 63%, 22% were dominant in the right ear and 15% did not have a preference. This study showed that there is significant loss in the dominant ear compared to the non-dominant ear (P < 0.05). Chronic usage mobile phone revealed high frequency hearing loss in the dominant ear (mobile phone used) compared to the non dominant ear.
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Velayutham, P., Govindasamy, G.K., Raman, R. et al. High-Frequency Hearing Loss Among Mobile Phone Users. Indian J Otolaryngol Head Neck Surg 66 (Suppl 1), 169–172 (2014). https://doi.org/10.1007/s12070-011-0406-4
- Mobile phones
- Electromagnetic radiation
- High frequency hearing loss
- Dominant ear