Cochlea Hair Cell Rescue After Noise-Induced Hearing Loss Using Low Level Laser Therapy

The study conducted 13 years ago on eleven rats demonstrated that Low Level Laser Therapy (LLLT) could significantly improve hearing loss induced by noise exposure. Rats exposed to 120 dB noise for 6 hours showed hearing recovery in their left ears treated with an 830 nm laser at 60J/cm² for 12 days, with hearing thresholds improving across various frequencies, while their untreated right ears did not show similar improvement. The findings suggest that LLLT may be a viable treatment option for noise-induced hearing loss, warranting further investigation into its mechanisms and potential for delayed treatment applications.