Infrared light, particularly near infrared light (NIR), already shown to be effective in wound healing, is now being tested on individuals to see if reduction in hair cells in the ear can be lessened or prevented from noise induced hearing loss. Mice and rats have proven the method to be effective already. Rats given the treatment in one ear had more hair cells than their other ear after being exposed to noise. Mice given the NIR treatment for ten minutes in a single session had better hearing after being exposed to noise opposed to mice who did not have this treatment. Experiments with human individuals are now underway.
Key Takeaways:
- Research studies in the past have shown that infrared light can help prevent the death of hair cells which are essential to our hearing.
- Most humans are born with about 15,000 hair cells in each ear and they deteriorate as we age and get exposed to loud noises.
- Animal research has shown that near infrared light can significantly reduce hair cell loss if given for an hour each day after noise exposure.
“Now researchers at the University of Miami are assessing the effectiveness of infrared light delivered to the ear in reducing the effects of noise exposure.”
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